Agree with Lepintoy.
Of course, if there will be changes soon, it's better to wait several weeks, but it's obvious that this strat is over and there will be not a lot fun battles, winner is clear and nothing will be changed. So, i think if devs are not planning to release new version of strat in next few weeks, it's better to wipe it now. Or not now - in one week with previous announcement so everyone can spend troops and make some battles.