The whole discussion is around revenue to the school.
Revenue = Cash + Product + Royalties.
Tennessee's royalties, for example, are 12-14% of sales, so a large fanbase, with good designs, generates sales and in turn, royalties. The smaller fanbases will get some cash, maybe in bonuses, and mostly product.
As I recall, Adidas did not give Tech any cash, but did provide product. I have some of the athlete's gear and it's a step up from what is available retail wise. According to CLC, the top licensing programs (which generate the most royalties) are (2018) below. I would not expect to see any major change to the availability of GT gear, regardless of who is the sponsor. We just don't have the fanbase size that drives royalty revenue.
- Texas
- Alabama
- Michigan
- Notre Dame
- Georgia
- Florida
- LSU
- Florida State
- Texas A&M
- North Carolina
- Auburn
- Oklahoma
- Nebraska
- Arkansas
- Wisconsin
- Tennessee
- South Carolina
- Penn State
- Missouri
- West Virginia
- Kansas
- Clemson
- Oklahoma State
- Louisville
- Texas Tech