"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."
Monsters will definitely not have Feats.
The Spined Devil does not have any listed feats. It has a lot of invisible bonuses that may be represented by feats.
Its safer to assume that monster feats, though not formulaic based on HD/Level, still exist, albeit in a more arbitrary/creator's decision manner.
Feats will be there, they're just getting standardized in that there will be little if any "useless" feats this time around.
To be fair, they are likely to TRY to make it where there are no useless feats this time around. But on the other hand, I bet they tried for that in 3.0/3.5 too. I doubt they said to themselves "Toughness? Give up a a feat for a measly 3 hit points? Sounds like an utter waste. Lets throw it in anyway and see if we can sucker anyone into taking it!"