Is bitcoin going to be instant and free like XRB? No.
Is bitcoin going to support smart contracts like ETH and NEO? No.
Is bitcoin going to pay you for holding it like NEO, VEN, XLM? No.
Is bitcoin going to pay you exchange dividends like KCS and COSS? No.
Is bitcoin going to be completely anonymous like XMR? No.
Is bitcoin going to have the business partnerships of VEN, ICX, WTC, REG, OMG?
Lightning network will it make it a bit faster and a bit cheaper. There's a hell of a lot more to blockchain technology than being a bit faster and a bit cheaper.
1. The lightning network is going to process millions/billions of transactions per second and It's going to be instant and the fees will be so insignificant so yes. (and no, It won't make it "a bit" cheaper and faster)
2. Yes it will. RSK is under development and read this too:
https://www.coindesk.com/greg-maxwell-taproot-bitcoin-contracts-life-after-blockstream/5. I can't tell for sure as I'm not a cryptographer but there are definitely proposals (Confidential transactions, TumbleBit etc.) that are being worked on to make bitcoin more anonymous.
6. It's a decentralized network so what is a definition of "business partnership" and with whom? I'm not sure that's an advantage.
As for holding and dividends then the bitcoin whitepaper clearly says "P2P Electronic cash system". It was never meant to give you dividends. My point is, a lot of things are coming to bitcoin which will make most of the alts useless, not all of them but definitely most of them because after all we have 1500+ crypto while most of them are never heard of by most of people.