Looks like HTC are gearing up for a new version of the Vive - https://twitter.com/htcvive/status/949339978521169920
I suspect the date given is for the announcement of the announcement at this year’s CES rather than an actual release date (unless they are writing the date in the correct order, instead of the American order).
Advert is pretty self explanatory as to what the main change will be for the new unit. I must admit, it will disappoint me if it really is just a higher resolution they are going for. These VR headsets are already pretty demanding as it is and going up to 4K or even a fake 4K like the Pimax is going to demand some really hefty requirements, likely beyond even a single 1080.
My actual wish list for a new Vive headset would be foveated rendering (adjusting resolution depending on where the eye is looking) as well as increased field of view. I can’t see higher resolutions working without using foveated rendering, unless they really want to narrow the market. As for FOV, don’t know what the Oculus is like, but the Vive really does make you feel like you are looking through goggles. Getting it to really fill your vision would be a massive leap in immersion, probably more so than the resolution.
A nice to have would be wireless. I get the feeling that for many that is high up the list of required fixes, but personally the wire has never been a massive issue for me. Yeah, I have to occasionally step over it, but I would rather issues like narrow field of view and screen door effect were sorted before looking at getting rid of the wires. (This might be because I don’t have massive space to move around in though. Turning is where the main issue is though and, yes, I do have to think about it, but it is also an issue that I can put up with if the solution is going to bump up the price massively.)