Here’s an idea. If you are seriously considering the RP based on the current leaked specs, tell us why with a little context about your use case.
Very brief intro:
I’m interested in the RP as a replacement for my 6D, which is my only camera. I’m a hobbyist with no aspirations to make money through photography. My most demanding use cases are birds in flight, daughters on stage (dance) and scenic astrophotography (aka milky way landscape).
Rumored specs most interesting to me:
AF at small apertures so I can use my extenders on the 100-400ii for more than landscape and moon photos (f/8 lets me use the 1.4x, f/11 like the R would allow me to use my 2x)
Better AF with more points
Price
Non-critical extras:
I’d be interested in trying video for family events, I tried it once on my 6D and decided it was better to just be I the moment that have crappy out of focus video with loud lens sounds. (user incompetence MIGHT have had a bit to do with this)
I might as well get going on building my RF lens collection before my EF lenses are officially obsoleted
A smaller body might be nice, but might not given how much I like shooting with my 100-400. I will eventually get the 70-200 f/2.8, and the thought of that being short (due to telescoping) plus this small body sounds appealing for travel and general use.
Biggest disappointment:
Despite 6.5 years between launch of 6D and RP, the sensor will gain me little if any benefit versus what I already have. But a camera is more than its sensor, so at the right price, this is not a deal breaker for me.
I'll play this game -
I'm seriously considering the camera based on the leak for a few reasons.
My use case - I shoot almost exclusively landscapes using a 5D IV as a hobby, and I usually plan 1-3 photography focused trips per year (maybe a week long each). That can involve carrying too much glass and a tripod for maybe 3 to 6 days straight with camping gear and food. My issue is I only carry the one body with me, and at least a few times I have come a bit too close for comfort in losing my camera due to a misstep (or two). My issue is if I lose my 5D IV, there's no running to replace it for a few days and the trip is lost and over. I like the idea of having a light-weight and small secondary camera which can put out comparable image quality to the 5D IV for that "just in case" scenario. I could also see myself running both cameras at once when I'm humming and hawing over a composition or subject choice (i.e. something that needs a long lens and something that needs a wide lens).
What I like about the rumour - I love that it is half the weight of my 5D IV and much smaller. It looks as though I could add that to a bag with an EF converter for very little weight and size penalty which would amazing. For context, I've considered an M6 with a converter as well - I don't care too much about ergonomics/button layout or even the EVF if it is a secondary camera. The RP looks to be a much better fit than the M6 considering that I wouldn't need to be thinking about crop factor. I just need to be able to carry it with everything else! Also, and don't hate me for this, but I actually like how it looks! Oh, and the price. Definitely the price.
What I don't like about the rumour - LP-E17. This would be a pain for my use case - I don't want to double the batteries I'm carrying and have to leave a second charger in the car. If this used an LP-E6N I could just share batteries with the 5D IV since most of the time I'd be using one or the other and not both at once.
What I'm not sure about - is it the 6D II sensor? I had a 6D and replaced it with the 5D IV. I know DR comes up here quite a lot, but I've looked at my images from both cameras many times, and I do prefer the 5D IV outputs for editing. I'll need to see the output from the camera, because frankly the R could be a better fit if it's that big a deal to me. Though, if it's a small difference in IQ I'll need to ask myself whether it's worth the extra cash/weight/size to me.
But yes, I'm in the maybe camp. Part of me is also tempted to wait and see what the pro model looks like - maybe the 5D IV should become the backup to the upcoming camera. Well, that sounds like my GAS flaring up, so I'll leave it there!