Great that most of my points are welcomed with enthusiasm.
I know that Segwit, and especially Lighting Network, will be hard to implement, and would require a hard-fork, but I think we can contact nova, and most miners are mining at v.0.5, from what I know (only some seeds, are on the old version v.0.3.2 and probably just because they don't have to change it).
If we have approval of nova (and mostly we will get it), rest will switch over, because they know, we can't have 2 networks (and second blockchain won't get to any exchange) - it's much easier, with our small, microscopic network, than with such big networks like ETH or BTC, and even then, they must hard fork chain or continue old chain, which was abducted.

About Android Wallet - can't we make it to listen tx's and view POB blocks as a POW blocks, outside of course on different server (because ? Is it completly different? I'm not a developer or even programmer, but I thought, about sth like that.
Also we could use something different than BitcoinJ implementation - I have stumbled across quite a few bitcoin wallets github android sources.