First of all, your membership year doesn't end Dec 31st, 2014, check your profile to confirm the end of the first membership year (card operation> card renewal).

Assuming it does and you want to do MR around Christmas (based on the verbiage), yes, the sooner the better. Also, after this run and you're still short of less than 2000 miles, consider doing MR while you're in Turkey (domestic TK flights). I'm doing DIY-IST-VAN (1400 miles) just to meet the first year renewal and it's about $85 ai, so between 5-6 cpm.

If you're planning to fly in Comfort Class, it'd be prudent to wait until Mid March as they might change the aircraft.