I want more ways to control the layout/layers. Like being able to rescale the x and y axis independently from each other.
I want better way or alternative way to pan the layers instead of the awkward parallax. I want to be able to set the position of a layer, also where it rotates(so it doesn't always rotate from the center of the screen).
I want effects to not always act from center of screen.
I want tilemaps to be rotatable and the collisioncells to work well when they are rotated.
I want tilemaps to be resizeable too.
I want spritesheet support- allowing to use a spritesheet instead of individual frames.
I want better shader support that allows multiple textures to be used in a single shader so that better effects can be made- stuff where I can store texture data in one and refer to that to fill another texture and etc.
I want a scale inner and outer options that keep pixels square by rescaling integer based.
I want separation of layer properties from global layer objects, so you can set global layer properties independently of global layer objects.
I want menu features, and stuff that helps facilitate the creation of menus of all types.
I want families to have ability to swap instance variables, or allow instances to reference all possible variables regardless of a family, or vice versa- it becomes a hassle sometimes.
I want more family features and group features.
I want some timesheet? features that help schedule events so that events can be choreographed more easily.
I want better ways to transfer events/etc to other projects to reuse them.
I'll think of some more..
edit:
I want solid behavior to have some parsing, to allow more control over what is allowed to collide with what.
I want tilemap animation features, to allow tiles to be animated.
I want 9-patch allowed to be animated
I want tiled background allowed to be animated.