My opinion does not coincide with yours. Blockchain is developing very quickly, and very soon it will become known to all.
What did you mean? I do not remember anything new in the blockchain technology this year. It may happen that the mining of PoW + PoS will be combined, but this is not new.
Multiblockchain appear, when every app using its own blockchain. The speed of transactions became very big. Different kind of PoS mining - DPoS (with delegated masternodes) LPoS with leasing of tokens and so on. There are a lot of changes and developments in blockchain. May be blockchain develops not so quickly like we want but it develops.