Well, I will not start so often discussed subject like film vs digital, since I personally never found worth it. Just a few general comments about digital photography.
With digital, we have a whole new word of processing capabilities. Something that we never had before. Some may find this as an artificial touch to "real" capture, but I believe this is just an extension of our photographic vision. With digital you will need to learn some basic (or advanced) digital darkroom skills that may leave you with results far above those you have managed to get with film.
But (and this is where 7D shines again), if you don't like the idea of spending more time in front of computer screen, manufacturers keep develop very usable outputs from modern digital cameras. And let me say this, 7D is among the best when colors and tonality matters in jpg files. It's evident that KM has spent a lot of resources and knowledge (by both Minolta and Konica) in jpg output. I'm a raw shooter myself, but I have seen stunning jpg files right from the camera. Sincerely, I doubt you will be disappointed in this regard.
Since you have mentioned flatness, i will keep this chance and say, that IMHO with digital cameras "our" vision has changed a lot. I may be wrong, but my impression is that now, like never before people are prone to using tele range most often (and those crop factors have their influence on this too) which can leave an impression of flatness in general.
Further on, we have chance to see incomparable increase of images (and photographers) which naturally leads to HUGE amount of (sub)average results over the net.
The only "problematic" issue in digital IMHO is the linear capturing mode of digital sensors. Because of that, highlights are very sensitive to be burn out and dynamic range is something that needs to be improved.
As for myself, I don't find digital cameras to be inferior to film ones when quality is concerned. Just the opposite, but this is of course only a personal statement based on personal experiences and taste.
Last few years we had the chance to see some powerful software solutions for image management. I personally use imatch software, which gives me a great flexibility of managing my images. I store my images on (two copies) DVD discs which I tend to replace every year or so. I feel very secure in this regard despite some panic and pessimistic predictions that can be found over the net.
As KM is concerned, they will keep introducing new DSLR cameras. We can't expect the same popularity as Canon currently have but that does not mean that KM is unable to produce great cameras.
Next week (11 or 15 July), we will most probably see an announcement of the new DSLR (5D) as one low end product with: 6MP, AS, and some reduced functionality when compared to 7D is what we will see most probably.
There has been a lot of rumours (some of them are quite realistic) that next year (in the second half) we shall see two new DSLR bodies. One for those whose demand are above 7D capabilities and most probably one that can be the replacement for 7D.
With a fantastic AS capability and unsurpassed ergonomic KM will produce quite competitive cameras. Maybe those will not be the best choices for most users, but for those who appreciate various aspect of KM engineering those will be a great tools. (if you missed, you can read the last SMP column on LL website, where you can find another new KM fan in the person of Mike Johnston.)