I don't see any changes in strategy or tactics with 4 moves deck, or 11 man ballott. Game still the same, and all strategy theory still the same.
Only changing the board size or rules can change strategy.
4 moves deck generates around 600 openings. This is hard to memorize, and I seriously doubt it will ever be adopted in the human cross aboard play. But if mail players start playing it in the nearest future - I won't be surprize.
Matthew, opening stage of game is important, hard and most enjoyable part of game