Bowl "invites" as they used to exist are a thing of the past. The bowls are now grouped into tiers, and will be assigned teams by the league office in an effort to provide the best matchups and avoid a repeat of recent visits. This, in theory, will help teams like Minnesota that do not have the history of bringing many fans to bowl games - especially this year, with how much the Big Ten's national reputation has suffered, I expect the league will prioritize putting the best teams in the best games for a chance to get wins.
Tier 1: Citrus (SEC), Outback (SEC), Holiday (Pac-12)
Tier 2: San Francisco (Pac-12), Gator/Music City (SEC), Pinstripe (ACC)
Tier 3: Detroit (ACC), Dallas (C-USA)
If both Michigan State and Ohio State make the Playoff/at-large berth in one of the "major" six bowls, then there will be a scramble for the team after Nebraska and Wisconsin to sneak into that first tier. Iowa-Minnesota could be a huge game in that regard, and as I said before, the winner of Maryland-Penn State will put itself in the conversation, too.