but if you look at the #1 and #2 coins they leave themselves the time necessary to make chances... in fact they are stucked and makes no changes at all...
...and still fork (BTC fork of 0.7 / 0.8 update).
so i think it wouldnt be any problem to scale the event list with the factor 2 or 3 in time... drk still would be the most innovative coin in this market cap position. I suggest to realy work out a plan how it is possible to have a huge user base AND be innovative with hard forks and so such. This is the main problem that costs the other both coins there position in the long run... If you can not innovate any more you die but you need to find a way to do it smooth enought so that the user base can follow... The actual hard fork is an example how it should not be done.
Requiring wallets to be on the latest client or something would be the best solution for an evolving coin. No autoupdating though because that would be dangerous. I hear that Hirocoin has a window that alerts the user of updates, so that would be useful.