Ok, lets forget about "voting" and "bitcoin foundation" for the moment.
How about hedge funds contact core devs and tell them: "guys, in order to make this thing would-wide spread we need a controlled inflation: we need to remove "halving". Lets say for solving a block it will always be N number of coins. You guys will be rich, famous and your names will be written in history forever. From our side we guarantee at least 51% of mining power with the updated bitcoin protocol where there is no 21M limitation anymore. The garage miners could stick to the old protocol or whatever - their old bitcoins are useless".
I think this is very possible if we are talking about wide adoption of bitcoin.