1. It'll be primarily a console game. Sorry. We wish it weren't so, but all major multi-platform titles are these days, and it's definitely not going to be a PC exclusive.
2. It won't take after Invisible War - at least not intentionally. Deus Ex 2 wasn't an accident, it was an intentional shift toward a shorter game type with more freedom in which factions you could work for, and a further future sci-fi setting. And given the general fanbase reaction to it, no sane developer in the world is going to try that again.