With the HTC 10 getting long in the tooth, and 2016 drawing toward its winter, it's time to look forward to the next big thing from HTC.

The HTC 10 was something of a rebirth for the struggling company. Offering a cleaner Android experience and a simple but solid design, the HTC 10 surpassed the One M9 in many ways to offer a desirable flagship experience. 

So what can we expect from HTC's next handset? Rumours suggest that it might be codenamed HTC Ocean and here's how the threads of this story are weaving themselves together.

The HTC Ocean first appeared when a video surfaced showing an HTC handset with no physical controls, instead relying solely on gestures, touch and voice.

The video purports to demonstrate the "Sense Touch" user interface and was discovered on Danelle Vermeulen's website. Vermeulen is a visual and motion designer, although it is declared that the phone is a concept, raising some doubts as to how much can be drawn from this video.

The design perhaps has to be taken with a pinch of salt, but it sees a phone with no buttons, suggesting a range of interactions we're yet to see in smartphones so far.

The physical design doesn't look too far removed from the HTC 10, with a metal body and chamfered edges around the display. There are two cameras on the rear with an LED flash, but there's no knowing if HTC is going to go back to a dual camera arrangement. 

The video suggests that there will be touch-sensitive zones around the phone and demonstrates a heavier use of voice than we might typically go for. 

As this is an HTC flagship, we'd fully expect a full metal unibody.

What's interesting about the HTC Ocean name - and makes this a rumour worth running with - is that no sooner had notorious leaker Evan Blass shared the HTC Ocean concept video, but another familiar name in HTC leaks joined the party.

In isolation, a single leak could be dismissed, but with LlabTooFeR adding three codenames to the mix, it makes things more real. 

So HTC Ocean should be taken as a codename and the three versions suggest different devices with different skills: Ocean Master, Ocean Note and Ocean Smart.

The obvious thing is Note, perhaps following Samsung's lead with a larger stylus-equipped device. Exactly what Master or Smart would bring to the party is anyone's guess. 

As is the final go-to-market name. With HTC dropping the One moniker for its flagships and adopting HTC 10, logic would suggest it will be called HTC 11.

That may well explain the choice of Ocean for a codename, a sideways nod to Ocean's 11?

Currently there's no suggestion of what the HTC Ocean might have sitting at its heart, but it's likely to be a Qualcomm Snapdragon chipset from the 800 series. The most recent is the Snapdragon 821, but that could change, with rumours of a Snapdragon 828 and Snapdragon 830.

We'd expect 4GB of RAM and storage from 32GB, with support for microSD card expansion.

One of the things that's likely to dictate the hardware specs of HTC Ocean is compatibility with Google's new VR platform Daydream.

There's no mention of display sizes yet, but HTC opted for a 5.2-inch 2560 x 1440 pixel resolution on the HTC 10. We'd see that as an optimal choice for the Ocean, but with three codenames circulating, there may well be a range of sizes. 

One thing that's certain is that HTC's next flagship will launch with Android Nougat. For the HTC 10 the company took a lighter approach, stripping away a lot of the additional bloat for a cleaner Android experience, turning to stock Android apps rather than duplicating with its own. 

With a complete change in interaction with Sense Touch, the experience might be different, but judging by that video above, it's still very much about the core Android experience. 

HTC's track record with cameras has been a little rocky over the past few years. Currently, there's no indication of where the company might turn. 

The leaked video, however, did feature a dual camera setup on the rear of the HTC Ocean. Whether this is just for fun, or a serious consideration, we have no way of knowing. 

HTC was one of the first companies to put a dual camera on a smartphone with the HTC One M8. That wasn't a huge success, but things have moved on and recently we've seen the likes of Apple adding a dual camera to the iPhone 7 Plus

HTC is a company that's keen on innovation and we wouldn't be surprised to see the company take a different approach to cameras again in 2017.

HTC is likely to target early-2017 for the launch of its next flagship handset. The key dates to note would be around Mobile World Congress 2017, say the 26 February. 

However, HTC eschewed the conference this year, running with its own virtual event which it may well repeat, to avoid the noise of the big launches at that show. If that's the case, we'd expect it to some time in March 2017.