Now, I know I may seem a bit oversensitive or angry over this matter, especially when there's just a tiny proof of the presence of Macedonia in the game (as much as the "genoan" civ that has yet to appear), but I feel the urge to express my mind on the matter.
I'll be very very happy to see Persia, no doubt it, if it's true. About Macedonia, on the other hand ... I have the Deluxe version, so it's not like I had the choice to buy it or not, because if I had, I would only buy it if it was mandatory to have the persian civ.
For me, if one of the civs is really Macedonia, then I'll be angry, sad, furious, depressive, and so on. Macedonia is Greece-2. I know certainly many people will come at me stating that no, there's a nowadays country called Macedonia, that ancient Macedonia had Nothing to do with greeks, that Alexander should not be ruling greek civ because he was macedonian, ...
For me, that's either denial or over-nationalism. Ancient Macedonia was greek. And I'll develop my statement over five ways that show it : territorial, ethnological, linguistic, religious, and cultural.
What is nowadays Macedonia was occupied by the Kingdom of Paeonia, which happened to be a greek culture kingdom, before it was conquered by Philip II of Macedonia, that called it Paeonia Macedonia, and later was called by the romans as Upper Macedonia. However, while the former kingdom of Macedonia remained mostly of greek culture, being a thema of the Byzantine Empire, the "other" Macedonia was "slaved" when conquered by bulgarians, until both fell to Ottoman rule. So, both are different territorialy, despite being neighbours, but the Kingdom of Macedonia is clearly situated in nowadays Greece.
However, if the territory remains a "poor" argument to settle the debate, ethnology is another question. Today macedonians are Slav people that originally came from the north, more exactly in the 5th or 6th century, from the Danube, especially with the bulgars invasions and raids, while ancient macedonians were, as I previously said, greek. Which means that ethnology shows us that both people are completly different ethnologically different
What about the language then ? Well, as it was mentioned earlier, nowadays macedonians came from north, especially with the bulgar raids. Well, today's macedonian language is an indo-european language, and more exactly a meridional slavic language, a group which countains macedonian and bulgarian languages. Ancient macedonian was seen as either Greek division, a greek dialect, a different indo-european language with greek proximities, and even an illyrian or thracian language. Which means there's no continuity between the 2 languages at all. Also, the ruling macedonian elite spoke greek, as well as the Kings, and used the greek alphabet, which clearly shows their hellenophilia.
Now, of course we can not compare nowadays macedonian religion, which is a orthodox christianism, with the macedonian polytheism. However, we can compare religious practices from Ancient Macedonia and the "main" Greece to see if there were proximities, which in fact, there were. They prayed the same gods, while having, at some exceptions (but there were also religious différences between the greek city-states themselves ...). Which shows that ancient Macedonia was religiously close, to not to say the same, as the greeks.
Finally, culturally, ancient Macedonians identified themselves as greeks (as stated by Polybus). Herodotus and Thucydidus also viewed them as greeks. As said earlier, the elite spoke greek, and their armies fought in the greek way : with phalanxes (despite Philipp II improvements made later). They participated in the greek political affairs, such the Peloponese War, were part of the League of Corinth (which was made of Greeks states), and so on.
Basically, all that I have written was made for a single purpose : show that ancient Macedonia was greek, and has absolutly nothing to do with nowadays Macedonia. The only link between the 2 is the name, and that's it. If the choice of Macedonia really happens to be true, then, as I said earlier, I'll be terribly frustrated. I can handle more or less eurocentrism to an extent. But having Greece-2 may just be too much for me to bear ...