Upgrade, worth it?

[Revanas]

Hi, so I want to upgrade my MB from Asrock A320M-DGS to ASUS TUF Gaming X570-Plus WiFi, S-AM4. Is is worth it?

My Specs: 

Asus GTX 1080, Ryzen 5 3600x, 750PSU, 16 gb 3000MHz DDR4 Ram

My plan is to not upgrade this PC anymore and buy all new PC after a year untill I see that GTX 1080 is not enough for gaming.

So would new MB help me? Cuz I see that some games do not run at stable 75 FPS 1080p (Yes I have a 75hz 1080p Screen)

[C17H23NO2]

Are you missing something? more important question, is the new motherboard giving you something that you are currently missing? 
As long as the PC is working fine and you can play and do what ever you like to, me personally, wouldn't bother if you already plan on getting a new rig in a year. 

[Mister Woof]

The only reason the upgrade would help is if the current board isn't allowing the CPU to boost as high and/or throttles it.

 

Games always have frame dips and largely there's no way to completely avoid them, just minimize them.

 

So determine first if it's a performance deficit issue, or if it is performing as expected for your given hardware for that title.

[Beowulff83]

I don't think it would be worth it.  If you have to upgrade i would save a few $ opt for a solid b450 motherboard like msi tommahawk.  Sell your ram and get a faster kit 2x8 3600.