Gear Lust is always a problem, however ask yourself if you really need an upgrade (If one does come out) as it will not help you play any better, that can only be done by Knuckling down and practice, practice, practice.
Have you delved into all the features on your Genos by creating your own custom styles sounds and pre-sets etc. (In most cases existing instruments can be just as good (Or better) as new instruments), as it will be your own, rather just some new factory (Not yours) stuff. (Which means you will sound the same as everybody else that buys one)
If you really want to push the boat out why not try something new by adding a TRX system
http://trxsystem.co.uk/ and learn more playing skills, rather than just playing along to what's already there.
Just a few thoughts.
Bill