I think it would be awesome if gyms could host seminars on Sundays,
Then for a certain fee your fighter would do the seminar which happens over both sessions on a Sunday so you would have to sacrifice your rest.
The person hosting the seminar could be an elite fighter with x amount of hype+popularity and the can only host a seminar on secondaries and they must be "Elite" or "Sensational" in this skill.
There is obviously a lot more to it such as max number of fighters per seminar etc.
But I feel it is a nice way of keeping gym managers active and would be an excellent way for them to earn extra cash whilst improving fighters