TimeLines / progression

I do not know if all content is unlock all at once or there is progression?? it would help if a timeline or progression line is put in place on the website or forums to help new players find out which server they wish to play on. i was trying to navigate forums but all i found are threads like is it too late to start ect.. if this timeline was in place showing the progression of the server new players would be more inclined to start due to easy access to info. If you agree/ dissagree please post your thoughts on this situation thank you.

Could be nice, yes