1) Go the whole DLC, expansion-packs, patches route with BE and really commit to this game.
2) Throw some DLC at BE and concentrate on Civ VI.
I can pretty definitively say they are doing both. Just how far along they are with Civ 6, I couldn't say, but its development is pretty inevitable. Any release carrying the word "Civilization" in the title is guaranteed several million dollars in sales, regardless of how much it is anticipated. How well it will be received remains to be seen.
Going back to Civ 4, there has been a consistent pattern for the Civ titles: The current game is released and the reviews and critiques are about 50/50 good/bad. And even most of the favorable reviews suggest that A LOT of polishing is still called for. And the polishing that inevitably follows is 2, 3, 4 expansions and/or content DLCs, each of which have sales on a par with the initial core game release. (DLC sales are nearly 100% initial game sales, in units.) When a follow-up expansion is nearly all favorable reviews -- Civ 4 wasn't "complete" until BTS, and Civ 5 wasn't "complete" until BNW --
then it's time to start getting serious about developing the next Civ installment. [The exception to this was
Civilization IV: Colonization , because I think nearly everyone (including Firaxis) didn't view it as being "a
real Civ game, having been released initially as it's own genre of 4X that was only "Civ-
like" in nature. So no expansions for that one.] I expect that CBE _will_ follow this pattern. It even indicates in the game manual that there WILL be DLCs coming in the future. They wouldn't make such a statement there unless there was
already DLC well into development.
In regards to the player feedback in places like here on this forum, pay very close attention to the fact that the voices you hear are from a very _tiny_ percentage of the total number of consumers. But there is a Marketing perception that each consumer that expends the effort to share his views is representative of the attitudes held by at least XXXX other consumers that seldom if ever speak up. That is, the talkers are more motivated to speak out, one way or another. HOWEVER, before making any calculations, a percentage of the "Yay! Love it!" statements should be discounted (tossed out) as they are essentially fanboys that inevitably say nothing but praise for their favorite game or manufacturer. By their very nature, fanboys are outspoken and verbal, so their opinions are pretty much
their opinions, not representative of anyone else. So they get tossed out of the equation.
So, taking the feedback here as being a good sample, it looks to me that the reactions are about 50/50. Toss out the fanboys and I'm thinking 40-45/55-60 in favor. With nearly everyone indicating the game needs a LOT of work before it's as good as Civ 4/BTS or Civ 5/BNW. That suggests to me that we will be seeing 2-3 expansions and about a half-dozen content DLCs, spaced out over nearly two years. That would put Civ 6 on track for an initial release late 2016/early 2017.