In terms of code base, there is none. I'm pretty much throwing out the old code and most of the database design, essentially it's a from scratch rewrite.
That being said I'm not planning on starting from a blank page because I'd like to finish before the end of time. I'm building on the Laravel framework (which is PHP). The plan is to have most of the realtime elements (e.g. in-game chat, updates) done with Socket.io on node.js. In some weird future it would all be Vue, node.js and a single page app but not for this imagining. All very fun, but I'm stuck with sorting out the DB design at the moment so there's not much to show right now.
Loty asked me to look at a planet change in the current code, but it seems like touches on quite a few places. Might take some time to do well, but at least it would show someone's working on the game. I dunno, I'll see what I can do. My time isn't unlimited.
And when his armies reached the coast; and he beheld the sea; and comprehended the breadth of his domain; Alexander wept, for there were no more worlds to conquer.