Of Course it will mean getting away from SATAII to NVME and getting USB3 and DDR4 which would i guess be nice.
Ask your self what benefit NVMe will offer you, if you are running day-to-day operating system tasks only on your system, then an ultra fast 3500MB/s read, 3000MB/s write sounds great but in reality the difference between normal SATA SSD's and NVMe is tiny, unless you are running VM's off one with lots of 4K (reads/writes) heavily threaded loads on it, and if you are want to take advantage of the sequential speed then you need more than one drive with those speeds, or you are just bottle-necking it, SATA III would be nice, over SATA II though.
Same thing about USB 3.0/3.1 (Gen1 & 2) what peripherals do you have that you cannot connect at be used well enough USB 2.0 speeds? External HDD, is the only one worth mentioning for most folks, and after that not much else will use the bandwidth.
DDR4 is faster than DDR3, latency is higher, and you already have good bandwidth since you have triple channel vs. dual channel.
If you play lots of games, then you might have a reason to upgrade, but unless you are running a GTX 1080, then the current system is not going to bottle neck you that much, esepcially if you kncok the overclock up to 4.0GHz plus, assuming you have the PSU, and cooling available.
It really is a properly poor time to upgrade a PC, imminent (2-3 months) change to graphics cards, Intel 8c/16t CPU's on mainstream chipsets, and even better than than AMD's Zen 2 will be here in ~10-11 months with potential to have 12c/24t CPU's for <£300, by which point you might be able to buy 16GB DDR4 3000MHz for £47 again, like you could in May 2016.
Ignoring everything above, if you just feel like upgrading, then go for it, it's always nice to have shiny new things and if you'll see a big benefit to your workflow, gaming, fun time on your computer then why the heck not? If you go AM4, you should be able to drop in a Zen 2 CPU when ever they are out (if you want to), if you go Intel then, well you get what you paid for now, and it will have to last you until you change again.