buying an iPad

Maybe i should have posted in tablet section but whatever. I wanted to ask wheather it's worth to buy an iPad 3 now, when 4th gen is out. I live in Serbia/Europe and 4th iPad wont come here for few month and than it will be overpriced. One major issue as well for me is that i dont think i can buy apps from appstore from my country and i've never used ios before so i would appreciate if someone can tell me if there's enough usefull apps for free, as i cant buy as opposed to android (play store doesn't support Serbia as well). And also will it really be future-proof for at least next year? Thanks in advance :)