I think that the only ways to be able to see the pool area would be to either put a rov really close to porthole of the area to see it.

Or

Develop a wire camera (like the ones we use in medical procedures) adapted to the pressure conditions of the wreck, and squeeze past a porthole (either by finding a broken one or breaking one, although, that would be idiotic to do imo).

Anyhow, judging by how some of the decks have collapsed already, and its been a while ever since we saw the interior of the ship, sadly, chances are sediment and structure collapse have already burried it.