Not much to play on the PS4 yet.
Play games on 360 or PS3
or play some older Wii U games like
Resident Evil Revelations
Deus Ex
Monster Hunters
Pikmin 3
Splinter Cell
Assassin's Creed 4
Zombi U (if you haven't played it)
Rayman
for example
I'm definitely getting one of these in the meantime.
Probably Pikmin 3 and AC4