Still be up for a delay command, like an IA step, that would pause for a certain amount of MS before continuing. This is useful for weird little auto wipe patches I've made for my Infinity, but without the delays certain commands are missed whilst it's wiping loops.
As someone already mentioned, variables would be a great addition. At the moment I'm doing variable stuff on a laptop and sending back to my pedalboard, but would love this functionality when I'm not using the computer.
The ability in the editor to copy + paste multiple IA actions (not the buttons, the lists of IA actions), this would be particularly useful as I've never been able to copy between presets successfully (always fine if copying from a page).
I'm also not sure if this is just me, as mentioned it before and no one seemed to have the same problem, but in the editor, if I have more than 9 (on 13inch laptop) or 10 (on 15 inch retina) actions in my IA list, whilst I can scroll up and down to edit the action type on the right, I can't actually see beyond the first 9 or 10 in the lefthand section, so reordering becomes impossible. It's not a killer if you're running macros within macros, but at some point I'm going to run out of those.
Pedal Grouping - Only just looked into this, but as someone using 4 expression pedals, I'd love to see the option to essentially double this up via pedal switching, so in theory I could have 8, in the same way you can control '4' pedals, from 2 expression pedals at the moment.
This might just me being a dumbass, but I've never had any joy (or room for the buttons) with IA store etc, so I've always had the odd page/presets where buttons are just lit when it loads and there's nothing I can do about it (well through my efforts anyway), so a more obvious way to define a buttons state upon loading in the editor would help me out for the way I'm using it, as can get a bit confusing with loopers especially! Literally, a little toggle box in the editor to define the load up state would make my day. I don't need any midi info sent, I literally just want the light to go 'off', so I don't think I've already changes patches or started recording loops when I haven't.