I would love to see some more unique items in the chest, rather than the same types of things we get with every crate (spawners, perks, chat colour, etc.)
One idea that I had, with the bold/italic chat colours we've been getting lately, was to maybe have a bold chat perk that you could win from the chest, so instead of having a specific bold colour, you'd have permission to do &l before your messages (or even just for all your messages to be bold). This could be compatible or non-compatible with existing chat colours. Same goes with italics?