I haven't uncovered a lot of rumors about TMs or tutors yet, but try and look around because they might be floating around. But yeah, I agree Water Pulse would be a great move for those Water-types that get Mega Launcher as an ability, like Mega Blastoise and also the Clauncher line, as revealed when Clawitzer was leaked. Clawitzer was revealed to be a strong special attacker, so Water Pulse would be perfect for it!
Definitely agreeing we need a physical-based version of Hidden Power that those with higher Attack stats can actually use, think of poor Flareon! And yeah I am definitely seeing changes to the Hidden Power calculations to fit in the Fairy-type.
Also, according to
kalos-pkmnacademy on Tumblr, Skrelp's evolution is called Skriseur.