They first announced building a academy roster in 2023. It's almost 1 year now and still no progress. It would be same this year too.
Again, correct me if I am wrong but T1 teams weren't allowed to have academy teams play challengers since 2023, i.e, start of franchise league. This is the first year this change has been implemented and T1 teams can have academy teams play the challengers league(but aren't allowed in ascension under their name I think)