If the cimzia is not helping the pouchitis, have you treated with antibiotics? I would presume you had, since it is ptretty standard. What about using methotrexate in combination with the cimzia? I use Simponi, but that has not been approved for Crohn's, at leadt not yet.
Cuffitis may or may not be chronic, and if you have an anal stricture and/or chronic poucitis, that can worsen things. You can have bleeding with pouchitis too, just less likely.
I am sure that you know that pouch failure is more likely with Crohn's... But, I understand wanting to avoid pouch removal if you can, especially since it will not cure the Crohn's. Good luck!
Jan