120 character boosts in shadowlands?

so, i prepurchased the heroic edition of shadowlands, it came with 30 days of gametime, a special mount , special pet, and a 120 character boost. whats gonna happen to my character boost when shadowlands prepatch/full release comes out? Will it become a level 50 character boost? Will it just get deleted if i dont use it at all? can someone tell me how that will work if i have an unused boost ?

It will likely become a 50 boost since thats where the current cap will be moved down to in SL.

And no, they won’t delete it. Just operate as if that boost will become a level 50 in the future.