Battle Sorcerer is still Tier 2. I just don't list variants of classes unless they're actually on a different tier, which is rare except for classes that are right on the edge anyway (like Fighters). Cloistered Cleric is also still Tier 1. Really, the differences aren't much... a Battle Sorcerer is generally weaker than a regular Sorcerer, but it can still do the same things (just fewer of them on any given build) and is better for certain gish builds. Cloistered Cleric loses stuff that doesn't matter (BAB, which it can get back with Divine Power, plus some armor and hitpoints) but gains stuff that I think is better (many more skills, a few more spells) but isn't enough to be that significant in the long run.
Likewise, Bardic Sage and Divine Bard are pretty much the same as Bard.
So yeah, you can pretty much consider any variant that's not listed as being the same place as the main class, except in a few cases where I noted otherwise or in a few possible cases where I just forgot something.
JaronK