The yellow faces are iconic, so LEGO would lose that, prices would probably raise a bit, and they’d have to accept for children’s themed licenses to make up for Ninjago and City.
I’d be a little sad to see Constraction nearly surely die, but Ninjago has to end at some point, and I’d be saltier if it lasts longer than Bionicle ever did than if they canceled it next week. Ninjago was a part of my childhood, but so were HeroFactory and the nonexistent Power Miners and Space Police sets in my shelves.
As of current, the only non-canceled, non-licensed themes I’ve been buying from lately are minifigure packs (though this could open up Marvel, Overwatch, and Star Wars packs, which I would buy quickly) and LEGO Movie sets, which are partially licensed anyways. So, in terms of my reapings, it wouldn’t affect me too much.
At the end of the day, I am pro-license because that is what I want to buy, not because I want non-licenses to end. Who knows? Maybe the next Bionicle is bound to be revealed in a month!
Thanks for asking that, it was interesting to think about.