It would be very cool but really I think that they should just focus on the single player if there is multiplayer then its very welcome but look at Batman Arkham City for example, It has no multiplayer but a rich and unique story with loveable characters and brilliant gameplay that game recieved a very good score and most of you on these boards I assume have either played it or own it like myself.
If they do decide to bring multiplayer to Sleeping Dogs then it should have a co op aspect not an online multiplayer. If you look at Saints Row 2 and The Third for example they both have brilliant co op letting you and your freind play every mission and every activity basically restriciting you to nothing unlike GTA IV's multiplayer (which even though I enjoy) has very limited multiplayer features I was hoping that I could do all the activities like get drunk, play pool and bowling you know things like that but with your freinds online sadly thats not the case
if im perfectly honest I think Sleeping Dogs is going to be better than GTA why? well because it has so much variety for an open world game I think this is the game I have been waiting for all my life, Its the type of game that you would look foward to playing when you wake up in the morning!
I don't know what you mean... gta 4 has a pretty fun online, the problem with that game is that it's too slow paced and they tried to make it too realistic instead of fun and full of action i.e character moves too slow, cars are way to clumsy and stuff.
This game will be fast paced, full of action, speed and interactive. having online with stuff like free mode, triads vs police battles and the best: fighting arena/tournament would surely make it one of the best games even compared to gta 5. If it had local co-op plus online then it would be the best game ever!!!