I miss futuristic racers too. This thread made me realize that the Vita TV would be a good way to play all my Wipeout games, since Wipeout 1 2 3 Pure, Pulse and 2048 would work on it!
Also, if you aren't doing so already, you should check
Slipstream GX.
It's essentially a full Wipeout recreation, made by a team of super dedicated fans from
WipeoutZone.
They released a
beta in August and it's looking awesome!