Is their going to be a replica of the Titanic?

Yes. There is a replica of the titanic being built in china it is going to set sail in 2016. Yet it will not be the same because not many people know all the rooms and such.

A full sized replica will never be built for several reasons. Much of the structure and fittings could not be reproduced. Any ship must meet the current maritime regulations. A replica would not meet current safety regulations and it would be far too costly for a ship that can never sail. Though of course it could be used as a floating hotel this however would not be a replica.