Can never get over the line of thinking that because Lucas had multiple ideas for the sequels that means he had x number of alternate versions, the creative process aside along with the fact that these are three movies we’re talking about already, this is the guy obsessed with intercutting multiple stories.
We know for a fact that the one he submitted in 2012 wasn’t the microscopic one, or the one with Darth Maul, and an older one which isn’t the one submitted in 2012, the microscopic one, or the one with Darth Maul. It could be that the older one was just spitballing, the one submitted in 2012 was catering to Disney, and that he had one main idea with the microscopic ideas and Darth Maul coming back. But I find it more likely he was spitballing the whole time and never had one, single ST idea.