Well the rework on her E was alright, but it still feels a little lackluster. like, it doesn't feel very powerful unless you max it before you reach 18, at which it does 420 damage to anyone in the blast radius. Not only that, it scales on AP which is a stat that shyv never builds and the ap scaling is low.
If she were to be changed skillwise, they should change her skills to be much weaker in human form but strong in dragon form. And i think that's what they were going for with the E rework and health/unstoppable addition to her ult.
Her skills should change altogether in her dragon form so you can actually make the most of it while the skills stay the same in human form. Maybe have her E in dragon form trigger the %hp magic damage per second with the scorched earth or change it altogether to be something a little like Rumble's Q.
Dragon form Q could actually be a bite attack that could either have lower AD scaling than human form Q or it could shred a target's armor for a couple seconds.
W is a little hard for me to think of something, but I figured perhaps it could get a similar feature as Mega Gnar's E. Shyv is classified as a diver, but her ult is the only diving skill she has. W and ult are what really make her mobile, but after she transforms, she has no actual "diving" skill. So instead, i was thinking her dragon form W could let her take flight to a short distance. It wasn't entirely shown in lore, but I think she can't fly incredibly well so it reflects in this concept. Once she reaches the target location, she lands with a stomp, damaging anyone that was in the landing area and slows them.
I'm not the best when it comes to skill concepts, but I've been maining 
for a long time and I've had plenty of ideas as to what her skills could be like if she was ever reworked. It's just my thoughts, but I was pleased to share them
