It's a bit late for that, since you have 1 week left. Heroic & WQ aren't going to do much, you won't get enough legendary tokens for a new legendary item (unless you're close to half done).
LFR will give you 3-4 (with bonus rolls) 915 items, you might get 2-3 relinquished tokens for 910+ if you massively grind every argus named and invasions. And that's it for this last week. Next tuesday, the tower is gone.
Oh shit I thought I had a month. Looks like I will just be doing the tower for my monk.