They for sure try to do it as fast as posible.
I don't believe this for a second.
I dont understand why woudl want to delay with having first mover advantage. I am sure profit is not such that they will broke her leg implementing it. But they will for sure try to do it as fast as they can. Technology is different then of Bitcoin or ETH so they spend more time with it. Lets hope there will be soon soem announcement.
If the Devs wanted this done it would have been over a year ago. I've postulated why in this thread previously but I'm just guessing.
I think Jaxx is adding coins to their platform massively only this year.