I think kailangan talaga kabayan na surname mo nakalagay sa passport ni misis. I also renew (change of status) my passport last nov 2009 in DFA manila as it was really needed. Mga 14 or 21 days after ang release depends if you want it rush or regular processing. Madali lng naman given your wife has all the necessary requirements. And important document for husband/family visit visa such as your marriage certificate is need to be authenticated by DFA and Phil Embassy here in Qatar. Just to avoid rejection and disapproval, better to renew her passport.