Note: Poll is rigged in favour of no change.. [No] vote unlikely to beat the [Yes plus Wait]
If proof of stake has a role to play, then PPC is the example of what that means at an extreme.
For me, it's still
Major: BTC; LTC; PPC; NMC; DVC
Minor: FTC; TRC; MNC; CNC; BTE; BQC; etc
If you want to consider a coin going minor, then perhaps DVC is not doing much.
PPC is just waiting for when/if proof of work become an issue - it remains a major contribution, with all the potential that goes with that.
If volume rises, then perhaps even copycats will do well but is that enough. We don't know if speed of confirmations will be a big factor yet - BBQ could become a major or Feathercoin even. CNC could in theory become big in size but I'd rather see contribution to development valued over just market cap.