Will it be possible to continue the game after completing the story quests? (The Witcher 3: Wild Hunt)

You can, with the exception of some quests that are related to the main plot.

you can of course even need)

Yes, you can, even everything is done cool after completion, you will see everything yourself, know the spoilers))

Thank you all for the prompt response

Alexey Latkin
Possible but not interesting :(
so I started again but in detail :)