Man, the Panthers situation is so bad it doesn't even get a rating.
Tua will get his extension this offseason. It's now the norm for QBs you believe by year 3 to be your long term starter to get it after year 3 and this is his 4th year (he had to show he could stay healthy). That organization is also 110% confident in him being a perennial top 5 QB.
Regardless of what he gets in the extension, next year he'll be playing on the 5th year option which takes his cap hit from ~9 million this season to ~23 million next season. Personally, I think he comes in right about where Herbert is at around ~52 million a year.
Also, Waddle will be going into the last year of his contract and will likely get paid well for a wide receiver which is north of 20 million. Next season is Miami's last "budget" year.