A decent gallery would make sense as a Max plugin 
I’d honestly like a more solid integration with Woo…
Also the ability to do the basic thing more easily which would appeal to the more average Pro user. More basic things done easily could also potentially help grow the user base. It isn’t necessarily that things can’t be done, it is just the time the things take to get done. Small things that would speed up the work flow would be a win.
As an example, one thing that comes up time and again is pulling out only parent categories for a list whether from the Post categories, the Woo categories or a CPT taxonomy. Easy enough with a custom looper or query string but would just be more simple if it was an option people could choose.
Another example of this for me is background image positioning. Quite often I need to adjust the background position of a background image. This isn’t possible with Pro without custom media queries and custom CSS. While it is super simple for me to do it takes additional time. If there were responsive settings for this it would save time.
My opinion is that Pro allows us to extend things way beyond the basics and does this well. This is probably the biggest reason I use Pro. Where it misses things is it is not easy for less advanced users to do the basics.
