I agree with this, prot 6+ and sharp 6+ should slowly be transitioned out of the meta, and prot 5 should be the strongest.
Unless strength 2 is removed, I don't agree with this change - strength 2 makes it way too easy to die, especially with pot lag. If strength 2 is removed (which I hope it is), then I would agree with this.
Elite kit is already OP enough, last thing we need is elite rank to get any better than it already is, ESPECIALLY since slayer is already protection 5.
Can you specify which ones? Most of the raid and base rules are there to keep things balanced, like buffer limits and cannon rules. Can you imagine Royal having twice as many walls, or having to defend a 1 second cannon? Those are just examples, and they're obviously extreme, but it makes it easier if you specify which rules, as many of the rules are good.
The opening of chests and teleportation, I agree with. Setting homes would be a terrible addition, though. If you allow set homes, not only does that mean once a base is raided, it can't be used again, but that also means that if someone gets glitched into, they may not even find out about it until months later because of the set home... Set homes should only ever be allowed in wilderness or faction land, end of story.
Omg YES. We need to have better supply drops, because I can't even be asked to waste my time they're so worthless. They need a buff, and this would be a great way - maybe don't change how often they spawn, but definitely buff the loot you can get and the number of crates.
I didn't really have a strong opinion on any of your other suggestions, but overall was a fairly solid list.
