here are a few good sites with info on the american, and japanese versions of the power/dai rangers.
http://www.rovang.org/sentai/dairanger.htm
and
http://www.supersentai.com/database/...ger/index.html
both are great sites.
is the american mystic force going to have the rangers all be siblings like the japanese version?
also, i think its really cool that they are going back to the caped version of the rangers like they did in the earlier shows like goranger.