Been pretty excited about it. Never played this before and getting an HD remake is sweet.
Some reviews :
IGN - 9.4 (Link)
Metacritic - 93 (Link)
Reviews are well, not really a necessity since this game is supposed to be gem as it is, so the HD remaster is just an icing on the cake.
Just to decorate the OP even more, for your viewing pleasure :
Okami HD Reveal trailer :
Okami TGS trailer :