You guys are just looking at CPU teams. They will relegate non-competitive teams as well. So my numbers are as follows:
Pro: 7 CPU / 16 - Relegate 3 to AAA
AAA#1: 3 CPU / 8 - Relegate 4 to AA - Promote 5
AA#1: 4 CPU / 4 - Relegate 4 to A - Promote 6
A#1: 3 CPU / 2 - Relegate 4 to BBB - Promote 7
BBB#1 +3.3 CPU Teams - +2 Relegated from A#1 - Promote 6-7
This assumes that nobody sells there teams back. Which they will.. so I would guess as I said above it will be between 6-9 teams.
As for my attitude, we will have a much better financial base after winning this League next season and you all struggling for wins and losing all your fan base in an uncapped league. As I have seen in other leagues where this happens, half of you promoted will be relegated next season after getting crushed all year. While we build up and land in A with a running head start.
I wish you all luck.. but I cant say I wish we were going in your place