I liked how it was handled with the Telvanni...they immediately let you back in without a care. Helps when all of the heads of the house are too busy and apathetic to care if you slaughtered a rival town. Obviously, you had the stronger argument.
God I love the Telvanni......
HIEGHTMAPS FOR SKYRIM PLEASE SO REGIONAL RESTORATION CAN COMMENSE AS SOON AS POSSIBLE. KNOW THAT CYRODILL WOULD BE LARGER THAN ANYTHING OBLIVION EVER OFFERED IN SKYRIM. (don't come to me about morrowind is poof, Im well aware)
I liked how Guilds handled your expulsion, they should expand on this and add lingering effects like tedious missions, lower dispositions with guild mates, more unspeakable crimes would lead to more dangerous missions, suicide missions etc etc, and going to far would simply blacklist you from the Guild and its services.
BUT
The fighters guild and mages guild were dissolved no? they were Empire instated, and the Empire we know a love/hate isnt around anymore...so?