I'm doubt. Mate do you know how they have blocked the redirection on the ps3 ? They use a kind of authentication between the ps3 and the sce servers to be sure they are sony servers. There for we need to spoof the FW version with a hack.
Well i would bet that the vita and his new kind of "Chains of Trust" will do the same like the ps3 for the fw check.
I'll bet 1000 virtual € that it can't be redirected with just setting up a DNS server.
But why not ask the dev of the HBL for vita to try this for us?