Twilight Imperium 4ed promises to be the best 4X (trade fight build diplomacy? I think) out there. Problem is the steep learning curve and tons of races and special rules.
There are also a Star Trek and Star Wars themed “universe” sized 4X style game, with radically different teams. One is called Insurrection, don’t own either but they look amazing.
as to semi-homebrewed games like AxA, FMG has a “Global War” map and rules for purchase, and a gentleman named jeff created a spin of AxA called “the War Game” which incorporates many customizable ideas such as rushing past blockers, special units for every team and different pricing for each team. He is a great guy and salesman for his idea, which is available for sale. Its a kind of AxA with added scope and complexity, with its own sculpts and rules.
I think Wolf has it right here; many gamers consider AxA to be too “light” but then again, they don’t play any games at all (it being impossible to teach and find time to play serious, deep wargames). some of the older games mentioned here in the “chits and hexes” era from 1965-1980 are awesome value and rules but playablity takes a massive back seat. The fact that triple AAA and the community exist adds for the possibility (like the WoTC d20 open license idea, but crowdbrewed) of unique set ups and games that are not really AxA anymore (very similar to how Civ 4-6 led to open sourced mods better than the published game).
So this is really a golden era of home-published games and new products. Axis and Allies pretty much is an exhausted brand that has been extensively used and abused but what remains is a huge catalog of sculpts and optional rules that could keep you busy on a desert island.
WoTC knows the brand is kinda tired, but it still supports Smorey and prints of the games, there is some demand out there. Lots of products die a slow death in that position, but not really this game. That’s thanks to the internet, IMO. Larry is a game designer, he doesn’t really like to play so much as create from what people say, and his mission statement on War Room makes it clear that is and has been his focus. With both of the IP parties interested elsewhere, the next product will probably come out a ways down the road, as a revival, and may or may not involve LH. But who knows.
Market Garden.