We'll never know. Titanic II's construction hasn't even started yet. I believe the pictures of a "Titanic" under construction currently is a replica of the original ship used as a hotel and attraction for a proposed theme park in China.

Yeah, they haven't started yet.

Even if they did, what's the problem?

The problem is they are apparently going to take the exact same route

So?

The ship will be built differently and they won't do the same mistakes that the officers of Titanic did.

Besides, with all the new technology, it's easy to avoid icebergs. Not that there are many left due to global warming.

Again, they didn't even begin to built it. If they ever do, things will be different from 1912.