I wonder if with companies entering the mining industry, like GMO and Samsung, mining will have a chance to actually become decentralized, as it should be.
It depends on how you look at that decentralization aspect.
In all cases all these miners will be pointing towards one of the existing pools accounting for a major share already. Purely based on that there basically isn't something as decentralized mining. The only thing that might be somewhat decentralized with people running these miners from homes and garages, is that the network itself will no longer mainly consist of large mining operations located in data centers being an easy target for governments and whatnot.
The thing is that no one prevents large farms from accumulating all these newer forms of hardware, and thus the cycle will repeat itself in the end.
I am happy already if we manage to see Antpool's share in this mining industry decrease further.