The Flames seem to really like Bru a lot, not sure if he'll get some games this year with all the 7-8 guys we have + Poirier/Grush, etc. , but if he doesn't make the team next year I'm sure he'll get called up throughout the year.
I see Parekh as at least 2-3 years away from the NHL, but who knows, he himself said he didn't have a great camp and didn't play to his strengths, so maybe he comes in next year and dazzles.
No need to rush any of the D prospects with so many 7-8 d-men on the team or in the AHL. Let them develop in the A where they can win some games before being thrown to the wolves.