I just think that assuming something without facts leads to misinformation and chaos look what happened at D23. It's better to just wait and see what happens.
Agreeing with the OP, guesswork never does any good, especially for a game 10+ years in waiting. I've been assuming late 2018 for a while now; if it drops before then, great! my expectations are exceeded. if not, I'll have figured as much and won't be too disappointed.