I will be surprised if Lifetime Platinum Premier Elite doesn't end up offer more than Lifetime Platinum Elite. I know it's a one time thing (originally created to recognize true Lifetime Platinums vs former Lifetime Golds) and then expanded to include SPG 75 night Platinum and combined program qualifiers.
I won't say it's impossible. I guess I am happy to be new program Lifetime Platinum Elite but now will only see if I have to wait till next year (or maybe when I officially combine?) To both see if I get the one time level and if it actually makes a difference...