I don't think so. Dolby are not trying to lock anyone into it but it does need different processing to produce the better results. They are just ahead of the others in performance at this time.
Anyone can choose to use Dolby Vision, they just need to pay for the licence. With gsync you are locked to Nvidia which would be like locking LG to Dolby for instance. That wont happen though.
I would choose Dolby Vision if I had the corresponding parts to complete the loop, source information being the biggest part at this time.
If people produce the content for Blu-ray and online services to use Dolby Vision then the rest will fall into place, if not then HDR10 will win out. I believe we will go this route as you can get HDR certified with HDR10 which is free in comparison to Dolby license.
Kind of the same reason that LG have not managed/chosen not to go down the THX certified for their OLED range compared to Panasonic which have and is the first OLED screen to do so. This was possible due to their custom processor and work with someone from Hollywood who specialises in colouring films accordingly.