The mate 10 is probably the only phone that i will consider for the rest of the year. If not, i have no problem hanging onto the v20. I believe the mate 9 at least had an ir blaster?
Just as an fyi, if you (like me) hate how slow the v20 snaps pictures in low light, the modded Google camera apk with zero shutter lag and always on hdr is working really well in my short time testing it. If it can produce usable pictures of my kids while they're moving as well as the s7 edge could, i don't think I'll feel the need to upgrade at all anymore.