The Warhammer Community site has put out a release covering some things being currently play tested. (this isn't on front page yet probably due to time differences).

It includes a return to movement values, and also mentions save modifiers.

Apart from the fact that non-GW are playtesting (so, verifiable that they playtest, a long running grouch from the GW-slaters), some of the best and most missed parts of the game may be returning.

Combine that with Necromunda, and it genuinely appears we are in good times for 40K.