The current iteration of infusions on the live server is +direct damage. With the changes to that system, I was hoping for some possibilities that would actually assist support players or tank players rather than only assisting with DPS. Having now seen the system on the beta server, I must say I'm disappointed - not because I dislike the beta's iteration more than the live server's, but because it is yet again focused entirely on improving damage, with nothing for other party roles.
I would suggest adding additional types of infusion recipes that instead add defensive or support options.
Examples could include:
+x health/armor/power restored by signature support skills
Characters affected by your minor heal gain a shield that blocks 20% of all damage, until X damage is prevented
+x direct damage mitigation after using a Core attack