If I can make one little suggestion though? Don't let your future viewings of DS9 be tainted by the sad fact that they are no longer with us. Look at it another way - by watching and rewatching Odo and Mog's journey through the series you are very much keeping the memory of Rene and Aron's performances alive. And that is probably the best tribute any of us could pay.
"I am and always will be the optimist. The hoper of far flung hopes and the dreamer of improbable dreams."