I do think the prison should be used more in single player storyline.. but I disagree with your interest of use for it.
Also, I really think for the next GTA, Rockstar should draw a lot of inspiration from San Andreas... how do you make such an amazing game and not build off of the components of it? It had more replayability value than any other game I ever played in my life. Gotta bring back that deeper storyline, that gang culture, that drug cartel overthrowing, that "im the king of my state", that "fuck everybody that aint ridin with me" shit from past GTA's...Tommy Vercetti gave no fucks..I miss that..
one thing rockstar does is that they never do the same things in every gta game they make but i have to say that they missed the boat on lowriders man. the game is set in a cali parody they have classic lowrider cars in the game but how can they not have mods like hydrolics , candypaint. lights under the car, and the lowrider meet minigame. its so much they could have done i hope lowrider competitons are one of the new details they add in next gen.
That stuff was relevant in the 90's early 00's though. This game is modern.
15 inch daytons and hundred spoke tires were only relevent in the 90's yet they still have them lowrider cars where only relevent in the 90's but they are in the game so why not hydraulics or the lowrider meet minigame? people in texas and the south especially miami still ride "donks" so why not have it in this game?
a lot of people want hydraulics so give the people what they want. there already is an npc lowrider meet in the game. for me the game doesn't have to repeat everything gta san andreas did i just think things like hydraulics and candypaint , the low rider meet minigame would bring more life to the game. if rockstar can add another flight school they can add that also.