It looks like there is now a citizenship ceremony happening in Burlington and one now at Mohawk too (http://www.cic.gc.ca/citcer/search-recherche-eng.aspx). I am hoping this means they're trying to find ways to speed up the wait times for oath ceremonies. I wrote the test in June but am still 'in process'. I hope it's not a 4 week wait once I get DM. I have heard of others who get DM and oath invite within days of each other.