A wipe won't accomplish anything. The people that have invested the most amount of time into this game will likely get turned off that their efforts have been erased and move on and the people that have the time (and willpower) to grind out gens again will grind them out again, leading to the same result a year down the line. Even with a rework of the gold/xp system, games reward time put into them, which is what the high gen folks did.
It's a pointless gesture.
(Gen 7 here, btw)