The pantheon rework actually does look balanced to me.

Let's be real here, people are a little skeptical over his e being able to block stuff while dealing damage to enemies in front of pantheon, and his ult happening sooner. But reminder that he doesn't have something that makes him op He doesn't have infinite dashes like some sekiro wannabe. He gains higher effects only if he reaches five stacks, which is more than most kits that usually trigger at around 3-4 stacks Also, his ult has a few unique ways of being able to be dodged, such as seeing where he initially lands, or the direction of the hilt of the spear. His e is probably the biggest part, he can move with it and it can block projectiles WHILE dealing damage. However, he can only block in a single direction, so if you can get behind him he cannot block your attacks, like king k. rool's counter in smash ultimate. So take the syndra ult back in his gameplay trailer, if pantheon were to cast his in the opposite direction, syndra's ult can nuke him for a lot of damage skill. But, only time will tell, at this rate it comes down to stats.