With Drivechain, Bitcoin Will Make Altcoins Obsolete
Drivechain, a proposed soft fork via BIPs 300 and 301, could introduce a portfolio of sidechains to Bitcoin and replicate any altcoin use case.

Source: Bitcoin Magazine
Drivechain, a proposed soft fork via BIPs 300 and 301, could introduce a portfolio of sidechains to Bitcoin and replicate any altcoin use case.