They might delay those patches, but like he said, that won't affect 2.0 and it shouldn't. Something with that magnitude have a release date. not only that, but a trailer and PS3 release date that most probably be announced at E3.

Yes, some games do push back an official release date, but never more than 2 weeks.

Aside from that, like I said before, level 50 dungeon people, 50 not 45.... hope it's epic. Oh and one more thing, no running while casting (bye bye dzamel fast runs, better get it out of the way before the update)