SPOILERS AHEAD IF YOU NOT SEEN
If you going watch any two-part episode of season 3 it must be this one , out of all episode these two are most emotional and by the end you will wonder whether or not she's dead, off-screen the actress is currently on maternity leave so we don't really know if she is really dead and that creates a lot of speculation but having caught up on the last two episode it was worth the ride and you just knew the wedding wouldn't go smoothly in fact i was think this was going to be the season finale but i was wrong.There are more episodes which is suppose set-off the Spin-off which should be interesting giving tom his own series
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If i was the writers i would keep her dead and set next season on the her kid. That's just my opinion.
If Tom allows Reddington to be involved that a mistake, he needs protect his daughter from him because of him she's dead.