STOP IT. JUST STOP IT.
BIP 16 has overwhelming support, it will be the solution.
Casascius: please read BIP 0001 for the process to get assigned a BIP number. The process is not "create a page on the wiki."
As for the proposal itself: No.
You are proposing a non-backwards-compatible change, which would mean a "hard" blockchain split. Everybody agrees that is a bad idea. The confusion and potential for hacks if a significant fraction of bitcoin users were on a separate chain is massive; you gloss over all of that in your proposal.