a) I heard there will be another hard fork within the next 2 years, this could be added to it.
I think you misunderstand. A hard fork isn't a foregone conclusion. It will require overwhelming support of all stakeholders (users, developers, miners, exchanges, merchants, etc). It isn't even guaranteed that the most basic and non-controversial changes will ever be approved. Bitcoin is mostly a fixed protocol because the consensus threshold is so high. Don't expect a hard fork to ever include anything but the most essential of fixes or changes. Short re-usable addresses don't even come close. The idea that one would dump a bunch of other "junk" into a hard fork because there will be one anyways is getting the cart before the horse. A bunk of junk means it is more likely the hard fork will be DOA.
If you feel strongly then start working on a BIP but the odds of a hardfork for anything other than "OMG OMG the entire network is going to die" is roughly nil and approaching 0% as the network becomes larger and more diverse.
