Rather than a subscription Model they could do worse than taking a leaf from Piranha Games Mechwarrior online’s “Premium Time” concept.
In brief you “buy” some of that and choose to expend it when it suits you. While its running you get an XP Buff and certain features are opened up. I stopped playing before it was implemented but they were going to have their “Private Matches” feature work like that. A private match could be run only by somebody using up Premium time as that justified the small scale server load for what might be a 1 v 1 instead of a full set of players.
Something similar here could work as the more hardcore (Veteran?) Galaxys could be limited to those that chose to use their premium time on play there. While other (skirmish & Main1) Galaxy’s would be accessible to folks that had bought the base game but were not yet in Love with it to the degree they HAD to play super Hardcore mode.
As long as P2W type features (Like say Build/Research speed ups) were not activated under Premium Time this would avoid the evils of P2W but provide a stead server cost paying revenue stream from those that chose to pay it. Purely cosmetic things like skins custom Name jobs etc could also be included here though I’d prefer a flat fee for such cosmetic add ons including say Paint Colours - IF (ah say IF!) the Ships have been coded to allow for such variations.
But for ANY of this or any of the other worthy suggestions here and elsewhere to fly we need a chunk more content to justify it. The core of the game is superb (well it was before the recent patch Bugged it to hell in a hand-basket!) but there is so much more needed before I could call this a complete game in itself.
That said is @Joe or anyone would give me a Pay Pal email or addy I’d cheerfully wire them £5.0 each month to cover MY Server fees and those of a couple more (Stated server cost / player <£20/Year: thus about £1.66/month) folks that didn’t yet feel the need.
I may complain but I’ll put my money where my mouth is every time for this game coz I can see it could truly be great with a bit more effort!