Wishlist as an LN user/enthusiast:
•Splicing on all implementations
•Async payments
•Rough consensus on standards for LN wallet recovery
•Bolt12 everywhere, especially on Nostr
•Good compatibility between LNURL and Bolt12 if or when the latter gets widely adopted
•LN Symmetry
•Ark, Spark, Liquid, Cashu and Fedi wallets integrating themselves into the network and making payments to and from self-custodial LN users as smooth as possible
•More wallets competing with Phoenix with the same business model to bring rates down
•More wallets competing with Zeus and Blixt
•More swap providers competing with Boltz to bring rates down
•A bigger marketplace of LSP's competing with each other to provide inbound liquidity to bring rates down