What kind of values are you using for your sun light and sky? I've implemented the new tonemapping (using the filmic ALU one) and now everything is pretty dark.
Just the standart values I was using before HDR with slight adjustment in ambient light and a bit more lightpower. But I experienced this too and turning down the maximum white value helps alot. Turning it down to 1 - 1.5 works great for me.
I personally like the look, we just need to find a way to fix the highlights of brighter colors. When we place sand it shoudl be brighter. Would luminance do that? again i like this new color and tone as it is very rich in color! We just need to figure out how to get sand and such to highlight now. Thank you guys for your continued help. I am seriousl going to put an advert for gamedev.net when we make the game playable.
Do you use some sort of material shader? Different light values like diffuse color or a multiplier could do the job to boost the values of some blocks while leaving the rest untouched. You could also experiment with specular exponents but in my opinion it makes it look unnatural when the exponent gets to small. Tweaking your textures may help too. Sometimes good looking textures with LDR look bad with HDR.