Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
pedestrian: promotion in Crossdress Chess is nothing special really ... look at the sequence of events ...
1. You move your rook (for example) to the 8th rank, aand it changes to pawn by random chance ... do you agree ?
2. Now, having pawn on the 8th rank, what is the next step according to chess rules ? You choose your own piece that your pawn promoted to ... are we on the same page ?
3. You choose , let's say a Bishop, putting it in place of pawn, and Lady Luck changes it for a Queen (for example)...
Your suggestion about crossdressing every pieces as usual on the 8th rank make some sense, but this really adds nothing to the original rules ... we can make even a rule , that on the 8th rank WE, not the Lady Luck determine our dress ... and this modification adds some skill factor ... but do we need this ? Do we need to modify dice chess saying that the second 6 in the row allows the player to make his own choice of move ?