At the same day when Bitcoin Gold fork appeared from the BTC Blockchain, the developers of Bitcoin Silver wrote on the Bitcointalk forum that they plan to make Bitcoin mining decentralized again. As they state, Bitcoin Silver will have a full replay protection to secure users’ coins from being spent by accident, a new proof-of-work algorithm, and the method of its distribution will be the same as was used by Bitcoin Cash, all BTC private keys holders will receive Bitcoin Silver on the rate of 1 BTC = 1 BTSI.
Considering current situation with a fall down of Bitcoin Gold and the fact that more and more cryptocurrency exchanges drop support for SegWit2x, it is difficult to say whether Bitcoin Silver will have any supporters and be actually implemented.
Meanwhile, Bitcointalk forum users do not take statement about Bitcoin Silver fork seriously, considering it a joke.
Bitcoin Silver forum users reaction
No technical details are available yet, but it is stated that Bitcoin Silver fork will occur in December.