However there are concerns on open world mechanics because let's face it as beautiful The witcher 3 was the open world was merely a Scenery while outside quests nothing interesting happened Gta in the other hand has a living open world.
One is Dynamic and living and the other is just a fancy scenery so in the end i see where this comparsion is coming from.
I'm not sure how to interpret this. I found the open-world of W3 to be great.
Living, breathing villages and cities with folks going about their business. People to talk to and sidequests to be taken, sometimes a little moral dilemma. Some of the little tales people had to tell you when questing were interesting, sometimes grim, sometimes funny. There were lairs to discover, bandit camps to be cleared. You could explore and stumble into a creature way more powerful than you. Pubs to visit and Gwent to be played and cards to be collected. Gossip to be overheard. What was lacking for you compared to GTA?
I enjoyed GTAV but what exactly do you mean by W3 being 'just scenery' and GTA being dynamic? If anything, I felt GTA was the more superficial of the two. You could enter very few buildings. You could get sidequests but they weren't anything particularly amazing compared to W3. A guy wants you to photograph someone, a guy gets you high, someone challenges you to a bicycle race. It's all done for the sake of messing about and putting their humour to use and is fun and all but what exactly makes it more 'dynamic' or superior? Apart from when you take into account individual tastes of course. There's no progression, no loot, no choice. These two games (W3 and GTA) are offering different things in their open-world and I suspect CP will feel far more like W3 or Deus Ex.
If you mean sandbox elements like spontaneously deciding you want to parachute off a building or try to land a helicopter in a swimming pool or launch a speedboat through a Ferris wheel then yeah, W3 didn't have that kind of thing and I doubt CP will either. It's an assumption but I think those hoping for that sort of stuff will be disappointed. I'm certainly not one of them.
Again, I'd say we can compare the open-world cities from a technical perspective but that's about it and, even then, we can't do that until we get our grubby little mitts on the damn thing