I think that legendaries will be revealed on Friday 22nd of March.
I think they will most likely be two wolfs from the logo.

When it comes to the typings, I think that the Sword legendary will be Fighting/Steel and the Shield one will be Fighting/Rock.
I also think that their signature moves will be revealed as well.

I don't now why but I just have a weird feeling, that we shall see some new information next week.