addressing Fred...
First of all, RIP Luke Perry, a classy guy and gone too soon.
That said, I do wonder where the show will go now, and how Fred's story would've turned out had he not died. My guess is Fred will be killed off-screen by the Gargoyle King (honestly felt like at least one of the parents would die before the end of the season anyway), and since I can't see Molly Ringwald coming back full time, Archie will live with Jughead's family until he gets himself emancipated then lives in the house alone, and start to turn into his dad.