I believe it's 28 and 32 (Destiny)
Unfortunately my web access at work blocks any site that can verify that. A cursory google search of "crota's end level 28" should provide you with verifiable sources.
Complete thread:
- Will new raids start at level 26? -
Durandal,
2014-11-17, 07:49
- Will new raids start at level 26? - Kermit, 2014-11-17, 07:53
- I believe it's 28 and 32 -
iconicbanana,
2014-11-17, 07:54
- I believe it's 28 and 32 - Kermit, 2014-11-17, 08:08
- Will new raids start at level 26? - Cody Miller, 2014-11-17, 09:38