Perhaps the BEST B1G Forum anywhere, here at College Football Fan Site, CFB51!!!

I am not sure Purdue goes to Rose Bowl if it defeats Michigan. The Rose Bowl gets to select its replacement Big Ten team if a Big Ten team goes to the CFP, so the Rose Bowl could select Ohio State, or Penn State.
The following is from the Rose Bowl site 109th Rose Bowl Game Selection Procedures - Tournament of Roses - Rose Bowl Game:
Should a team from the Big Ten or Pac-12 be selected to go to the College Football Playoff, the Tournament of Roses will traditionally select the next-highest CFP-ranked team from that conference. There is, however, a caveat to that clause in the contract.
If the next-highest ranked team is in a 'cluster' of teams, meaning there is another team or teams from the same conference ranked within several spots of each other, the Tournament of Roses will select the team from that cluster that will result in the best possible matchup for the Rose Bowl Game.
In a cluster situation, the Tournament of Roses will take into account factors, in no particular order, such as: the last time a team played in the Rose Bowl Game, head-to-head results, regular season schedule, overall record, opponents played, past playoff or bowl appearances and performance, and historical matchups.
It should be noted that it is the strong preference of the Tournament of Roses, Pac-12 and Big Ten Conferences, that the highest-ranked available team in each conference be selected as the replacement team.

That's all very interesting but if you read a little earlier in the same article it says

In what is known as a "traditional" Rose Bowl Game year, the 2023 Rose Bowl Game is contractually obligated to feature the Pac-12 Conference Champion and the Big Ten Conference Champion.

It then goes on to state what would happen if the Big Ten champion is selected to play in the CFP,  in which case the champion  is released from its obligation to play in the Rose Bowl and the Rose Bowl is free to pick another team of its own choosing from the Big Ten as a replacement.

BUT that's only if the Big Ten champion goes to the CFP.  In this case the Big Ten champion is Purdue, so the Rose Bowl has to take Purdue.

I guess to do new projections now would be almost pointless because we will know soon enough who is going where.  We can make certain assumptions.

Mich and OSU are both probably in the playoffs.  Mich will be #2 seed and play in Fiesta Bowl.  OSU will be either #3 or #4 seed.  If they are #3 they will play Mich in a rematch in the Fiesta Bowl.  If they are #4, they will play #1 Georgia in the Peach Bowl.

This means PSU will go to the Rose Bowl and play PAC champion Utah.

Purdue will probably go to the Citrus

I am guessing Illinois will go to the Reliaquest.

Minnesota will probably go to the Pinstripe.  Sorry Minnesota fans.

Iowa to Duke's Mayo and MD to Music City,  or maybe it will be the other way around.

That leaves Wisc for the guarunteed Rate Bowl.

The Quick Lane Bowl will once again go unfilled by the Big Ten.

I pulled some strings!  We'll get to see LSU vs Purdue! 
LSU -5.5 pts

NYC is actually a really popular holiday destination. 

I'm not sure why, it doesn't make a lick of sense to me. But it is. 

I'm not visiting New York, not for a football game

Restaurants, plays, city life, etc., it's not my bag, but it is for some. 

Huh? ya right 

Been there once went up to the WTC observation deck.Had Chili Dog,potato waiffers and Molsen and it was like 3x the price of what it would fetch back home.Much prefered  my Canadian Vacations