For Erratic Time do the characters know what effect they are under? Does the manifester even know what effect they are under? This should be specified because some of them at first seem to give the same thing but then don't like 16-20 and 21-25 possibilities.

Also, if 100 is rolled and they fail the fortitude save I'd restrict how they can be resurrected and maybe make their be no way short of divine intervention. After all, being torn apart across the space-time continuum is pretty severe.

I'm not sure about Split Stream's level. On the one hand it has both combat and non-combat applications so it should have a high level. And the descriptor of what it does certainly fits a high level power. On the other hand all of its uses appear very narrow.

Temporal Anchor: This power maybe should allow a will save? I'm not sure.