Last time i checked with the MP 2 months ago, my file was still in Ottawa and he told me that they will transfer it to ISB for processing in Feb 2014.
It came as a welcome surprise/big relief when my wife told me that she received the re-med through email yesterday. So I guess the file was transferred to ISB in the last 2 months sometime. We did not receive any indication of this though.
As for additional documents, I met my wife 4 times in the last 16 months in Dubai , and my mother/sis visited her once in Pk. I sent them hundreds of pictures and receipts for all our trips along with daily schedules for each visit. I also sent them 2000+ pages of skype/whatsapp/viber/sms/email proof
Also sent them proof of financial support, I send my wife money every month and save the transfer receipts.
I also added my wife as a beneficiary for the life insurance I receive at work, I sent in that beneficiary proof as well.
There is a ton of other stuff i sent in, stuff like pictures of all the gifts we have exchanged and the dates when these gifts were exchanged, put some property under our joint ownership and showed the proof for this.
My advice to everyone is to send them comprehensive additional proofs as soon as you can. I heard this from a very experienced immigration lawyer and have followed through on it by sending two packages of voluntary additional proofs. It cant hurt your case.
Prove to the VISA officer that you are indeed making your significant other a part of your life, show that financial dependencies are being created. This separates the marriage of convenience cases from legit marriages the most, IMO.