Sorry but no. 2.5D means that it's pseudo-3D. An illusion. Buildings in GTA Chinatown Wars are actually 3D models. A good example of 2.5D game is Wolfenstein 3D which was an imitation of 3D.
This is 3D, we're just stuck in an aerial view. The models are 3D, but all exposition is done in animatic comic style format rather than with modeled characters.
+LibertyMan2020 nós vamos lançar gta 6 em 2018 ele será bem realista e só será de ps4 ps5 Xbox one e Xbox thwo. se quiser colaborar se inscreva no canal da rokstar e compartilhe obrigado e tchal.