No kits and Abilities section: Almost not played, not quite fun so I'd say remove it and make place for more maps :D
More Kits: I really like the ideas of staff changing the kits but what about more fun kits? Sounds good to me.
More Maps: I know making a skywars map isn't minute or hour work, it could take a few days or even a week to make a good one but still in my opinion, new maps would be great! Although we're talking about an update so there will be new maps for sure right? And maybe insert a map of 32 players just for fun and just 1 or 2 of them. Those are a lot but it seems fun to me to have at least one. And as I said, if you remove the no kits and abilities section there will be place for more maps right? You'd probably make the sign section much bigger if no kits and abilities is gonna be removed.
Knockback Sword: As most people remember (if they played cube long enough) there has been a wooden sword with knockback 4 in OP solo skywars. Once I made a thread about it but that didn't worked. Athough I saw that punch 3 has been replaced to punch 1 so that's a start. But the main reason people hate OP is campers. This could be easily fixed by just removing the punch bow and replacing it for a knockback 4 wooden sword so people are actually moving instead of camping while shooting with a punch bow. And to finish it maybe you should put less arrows in the chests, not too less but less.
Amount of chests: Before saying something about this, please know that this is only MY opinion, thanks.
I think that the amount of chests in solo skywars should gave an upgrade from 2 to at least 3 per map. Because lots of people played with no armor which sucked.
At team skywars I've never counted the chests but I think you should add 2 or 3 extra per map. Would be fun to see this ^,^
Abilities: As we all know you can buy abilities at the skywars shop (the book on your 3th (second in java language) but for the price you pay in points you should get more % of chance. I mean 25K for (as far as I remember) 18% is a bit low to me. I think the highest amount of % should be 35%
Golden Blocks: In a map like PacMan there are way too many gold blocks. Someone already made a thread of notch apples and that they're too OP to make in normal skywars which I did not fully agreed with but having so much golden blocks as in pacman maybe you should place less golden blocks.
Final kill count: Some people do not lime this, but my idea if this is a bit different (or maybe not :P ) If you die in a game put a private message to the player with something like "click HERE to see your kills" and it will show the amount of kills. I think that could be fun,