I agree with The Cleaner here - it will be a % game as it always is in the great 'investment' of car ownership. The bigger the sticker price, the bigger the $ drop, so IMHO you will loose more $ on a 4.8 over a few years than a 4.4. Will you loose less on a % basis? ....remains to be seen. From a cursory look it appears that both 4.4 and 4.8 have taken similar (%) drops this year.
I am more concerned with the drop in $ Vs. the drop in %.

But its all speculative of course.....either way its a good/better time to buy a 4.4 or 4.8