The set up is that whoever played the previous game last clearly didn't do a good job, and now the aliens control earth. Humans live in ET-run Advent cities, apparently unaware of their evil overlords and XCOM effectively operates as a guerrilla organisation from a new flying skybase. Among fresh features are new soldier classes and aliens, procedurally generated maps and mention of 'stealth-infused tactics'. Presumably that's come from the new focus on fighting through fully enemy controlled urban locations.
So they basically saying that I wasted hours on end on both the original(which is awesome btw) and the remake and that only my game over screens where canon? Seriously what is this with this retcon? Didn't I save earth at least twice!?(few more times if you played terror from the deep and that third xcom game which I could never get to run on my pc). Story wise this direction makes little sense and now it being placed in far future gves this game a whole new identity....or so it feels.
Sorta not excited but we'll see what they'll do with the tactical combat since that is where the game strength always been.