I was never very apologist of band reunions. When people talk about it it's always about a great band of the past. My point is, these bands made great things, they changed music in one way or another, they took steps forward and they made a lot of people dream.
But to me, if Led Zeppelin or Pink Floyd got back together, they would never overcome what they did in the past and I guess it would be a disapointment. I guess it would be just a travel to the past and they would do nothing new, because that's what they are, great great bands of the past. Believe me, I love these two bands, but I think they already did their job (an awsome job) and now it's time to move forward (and give place to other bands), not move back.
The only one I wouldn't mind to see together again is Blur. I'm a fan but they were not amazing in my opinion, so I guess they can give us a bit more... Maybe there are other ones that I can't remember now, but the big names... Just no... They were almost perfect... Let's not spoil that.