Sell big cards before all madden release?

Recently bought d white, revis, keuchly and kayvon as upgrades for my team. is it wise to sell them ton and get whatever coin I can right now or do you not expect the prices to drop tomorrow?

I sold anything that was worth over 400k. even after tax i made 360-380k depending on which player it was. Prices will drop but there's no guarantees they drop enough to profit a lot unless you buy them back slowly over time. So unless you can get 400k+ I'd just hold for now. 91 vs 90 isn't such a big shift that it will really make a big difference for your team anyways.

EA can always do something unpredictable (like TVPs that drive up card prices), but pack odds usually change with OVR step-up. This will generally drive prices lower.  I sold off most of my team on Monday, but this was before the price drop of Halloween and yesterday. If you bought in the last day or so, there probably won't be a big price drop in the next few days. As always, prices decline over time during MUT. People will want the All Madden players because of the 91 OVR and because of the special ability bucket.

At this point, you probably should just keep. If you were going to sell, last week when we knew an overall upgrade as coming was the time to do it.