Wave 1 of legendary heroes

Pretty sure they'll just have them on a 4 month rotation. Blue is basically in that now, as will red after this upcoming banner. We already know November and December will be colorless (I've kept track), and after this upcoming one comes out, we should know which color will be for January and February, which will finish off all 16 legendary heroes, and thus put them in a "rotation", so to speak. They have to keep them available to summon (whales gotta get their +10 merges somehow), which means the banners can't just go away.

What I would like is if they dedicated more of the slots to the seasonal units that have already passed. Once the last legendary hero comes out, I would like for them, starting in March, to bring back all the first gen Spring units and keep returning the seasonal units so we have more of a chance to get more merges for them.

I would like to see IS stop making legenyheroes for a bit and focus on old seasonal, one(or twice) a month make a banner with a couple legendary heroes with a load of seasonal units, like spring and summer, summer and halloween, winter and valentines. Something like that