Integration is always a big topic but from some of the people I follow on SCN and general news I see these topics growing.
I'm not very well versed on the topics. I'll ping Agasthuri Doss as he might have some advise here.
If you continue down the development path doing some ABAP training as well could be beneficial so you are across key languages for SAP which would make you a much more rounded developer/jack of all trades.
Regards
Colleen