I like the idea of more diversity in length, especially since short clips would be a good way to bring new people into the anime world, and I'm hopeful that this means there will be more short-form anime that have decent budgets and some real animation talent behind them. I know that shorter anime can really shine when work is put into them (I'm going to take this moment to plug Kenka Banchou Otome, a favorite of mine that does a lot with its 8 minutes) but so many short-form anime are just a couple frames of character animation in front of a static background.
Kenka Banchou Otome's elevator pitch
Separated-at-birth twins are about to enter their respective single-gender schools when they find each other and decide to switch places. Our (afab) MC learns that the boy's school is known for its fighting scene and is tasked with fighting to the top of the hierarchy, and along the way ends up making every handsome delinquent boy fall in love by punching them. It's really really easy to read both twins as trans.