Will HF return anything to me or will I have forfeited my $$$ under their T&C's...
No. If your contract is terminated then pretty much you've got nothing to do with them, and if you do have a long period of zero or negative profits, your contract will get terminated automatically. Genesis Mining does the same.
It's not just that people's contracts are getting terminated, though. The minimum withdrawal is so high, and certain wallets are even in maintenance meaning that people left with a balance after their contract becomes unprofitable can't even withdraw what they have.
Again, we've said this plenty of times since Hashflare lowered all life-time contracts to 1 year deals without any input from users. Hashflare is shady and unprofitable at best. And unfortunately, there seems to be a ton of victims right now.
BTW, a change.org petition does absolutely nothing if people don't realize that cloud mining sites aren't some sort of guaranteed passive income source.