Sorry, these ideas aren't very well thought out.
The first would actually be the worst possible thing they could do, as you would force a small % of the player base into blue at peak times when orange fills. At all other times, blue would be completely empty.
15 minute afk boot is ridiculous. I would advocate a boot time of around 1-2 hours of idleness, however as this seems much more reasonable. Btw, idle players who log in before caps go into effect early in the game actually hinder the caps effectiveness after they go into effect. Just sayin. HiTech you may want to look into adding this if you are going to keep the caps system.