Wild has two values right now, the faction of this solution is that wild is to be devalued and worth less than modern.
The alternative is wild is where legacy and investment should be and a reward for playing the game over longer periods of time like an investor and dedicated player to the game.
Given the current formats of modern and wild. I would prefer wild be treated as a investment and reward for playing the game than a penalty, with a focus on long term growth not short term spurts.
At this point a third format is needed, one for soulbounds and chaos moderns and a classic format for older editions with cards and rewards only earned through natural ownership.