I've seen saying this since that scene at the end of episode 3 teased him as a potential future villain/threat.
There's just no way they can take him and there's really no way the show budget will be able to him justice. I dare not begin to imagine how much they'll nerf him. Especially after how they handled Deathlok.
I really wish the show would continue to make up villains/threats instead of attempting to bring in a crazily OP one that even the Avengers struggle to put down...
Marvel got a packed stable of superpowered threats that they could handle. The Cat, Chemistro, Razorfist, The Mandrill, Batroc's Brigade, Dr.Nightshade, Slyde, and The Powerbroker. Just to name a few.