This topic is merely intended as speculation and meant to be fun...a usual what if scenario.
I've played most of the GTA games from the old ps2 games right up to the GTA IV and Liberty city stories. The thing I've always loved abou these games is the stories. After you finish the main campaign, you can finish the side-missions and what not but it feels strangely empty. I can't help thinking whats going to happen to CJ, Niko etc.
For now I want to speculate what will be the future of Luis Lopez and Tony Prince. Now if you haven't played the TBOGT and don't want any spoilers I suggest you stop reading right now.
Let's talk about Tony Prince first. I am very convinced that after the main campaign he leaves Liberty City. Whether its temporary or permanently is up for debate. I'm convinced of the latter. Several reasons for this. First reason is I think he is burnt out after the events of TBOGT. I mean the guy was practically suicidal having owned money to Mori and the Mob. Ok, in the ending all is good and his clubs are saved but I felt he wanted to break away from all that. Maybe he did get away to that 'spa town'
Another reason is Yusuf Amir wanting to buy his club and franchising it. I'm convinced that Tony would not say no, especially with the amount of money Yusuf has. This is how most businesses tend to end up. Someone creates a business and some giant company like Microsoft or Google buy it up. With the money Tony receives he'll probably take a long hard vacation. Now whether the business relationship btw Yusuf and Tony can be sustainable is another matter. Yusuf is all about the money but Tony is all about the hospitality. He still cares about his brand. Maybe it works out. Who knows?
Another reason is show in the last cut scene in TBOGT. Tony is sitting with Luis in front of the Monoglobe. He talks about how as a kid he would look at it and wonder what's available on that place or that little island over there. Tony always wanted to travel, but after the recent events I think he made up his mind on that.
The last and most convincing reason is after the main campaign, Tony's number is deleted from your cell phone. Now why would his number not be there? Did he die or something? Maybe he didn't want anyone to contact on his long sabbatical. Who knows really? I'm hoping that in GTA V, Tony would be the owner of that 'Mile High Club" that was shown in the V trailer.
As for Luis Lopez I see him as too much of a Liberty City guy to want to go anywhere else. He's well settled. He has his mother to look after and loves hanging out with Armando and Henrique. Maybe he decides to enrol in college like his mother keeps suggesting to him.
I forsee Luis maybe opening his own security company and perhaps employing Armando and Henrique.
All in all I forsee that Luis and Tony will part and go their separate ways.
Feel free to contribute to this topic