Fair enough, may very well be that chance. Who knows.
Though I would personally prefer it if it would take them a little longer to give it back to us, and when/if they finally do that, it would be as a 4th option.
To see a re-implementation of a spec(or see a new spec), this will never happen in the middle of an expansion. If we see this sometime in the future, it would in that case happen when we transition between expansions.
Basically, we have 2 realistic options here(if you don’t count the one where they just ignore the demand for this spec to make it’s return, which again, if you ask me, would be a mistake).
1: They decide to give it back to us as a sub-spec, through talent choices in the MM spec. This would be the easier option, though we would not see this until the next expansion anyway.
2: They actually go with the option to, like they did with druids, add a 4th spec to fully allow proper depth to be added to the spec.
This is ofc the option that will take the most time/work to complete. But, if they have already started working on it, or if they start doing so around the stage were in now, they will have more than enough time to have it ready for the next expansion.
A bonus here is that, like it has been said before, the 4th spec route allows us to keep the 3 current specs intact(as in, the RSV would not really affect them and how they are designed).
Cheers mate! Although, I have a copy of that thread on this hunter forum as well. It’s essentially the same post(the suggestions). I added in some more motivation in the one below. [Suggestions updated] Pre-Legion/Ranged Survival
Don’t hesitate to leave feedback if you have some! 
I’ve had that design up for a while on various platforms to see what feedback I can get. And so far, people seem to like it. Only negative really that I’ve seen is the part within the talent section that involves your pet. Which I have since altered to be more about what your pet can do for you as the hunter rather than the opposite.
For anyone interested, here is my motivation as to why pet involvement in this spec should not be removed completely(and still, be entirely optional).
Pet involvement
Full disclosure, that’s my post on the MMOC 
I decided to post it on multiple platforms/forums due to the fact that many individuals don’t really visit more than one, or a few. Some, don’t really check the official WoW forums while still visiting for example MMOC. And vice versa.
That thread has generated a lot of interesting points as well as feedback.
That first bold segment is an edit by me to highlight the fact that I don’t want to remove MSV in favor of RSV. I did this as there were several replies where they simply dismissed the suggestions because they did not want MSV to be removed.
Which, despite it not being the goal, is something I very much understand. If you like a spec, obviously you would not want it to be removed/deleted(…hint).
Interesting point Zalgo. I did consider to include that original design as, like you said, it was very fun when those procs occurred.
In the end, I chose to go in the direction that I did as it allowed for more baseline player oriented choices to be made. You had more baseline control on how you wanted to set everything up.
The original design was, you had Explosive Shot with a 6 sec CD. That was it really unless you got those L&L procs.
New design, Explosive Shot in itself works the same, although you have 2 charges baseline and a 10 second CD up from 6. And you also have the ability to, on demand, add in another charge through the activation of Rapid Fire(major CD). As well as the chance to gain additional free charges through L&L.
How big would that proc chance be? No idea really as it most likely would require some testing to see what feels right.
Preach! 