Is it necessary for me to upgrade?

[Jourdan Roedel]

So CEX brought a ton of new things that are enticing, especially when looking at AMD. I'm sure all these new innovations will be great for the end user but is it necessary? Will I be left in the dust with my current system or do I start the preparation of a new build? I am what Linus would call a mild power user, generic gamer, pc enthusiast. I care about the components that are in the system and can rattle of any spec and compare benchmarks all day. I want the best of the best that is essential to my needs. I guess what I'm trying to say is; If there is a top tier SKU of a component that would be what I need for my usage, I'd want that one and not a basic model. I care about aesthetics but prefer simplicity in design. But most of all I care about user ability to tweek settings and gain performance. All of this has led me to my current build. 

I7-4790k delidded&lapped w/liquid metal - OC@4.8 on EKWB supremacy evo
Corsair Dominator Platz ddr3 XMP enabled @2446mhz cas11
Asus TUFF Gryphon motherboard w/Thermal armor
Nvidia GTX Titan Black 6gb on XSPC 780ti waterblock (OC@+225-+575)
PNY Xlr8 240gb ssd (boot drive)
Samsung 860 evo 500gb ssd (gaming drive)
WD Green 1.5tb HDD (mass storage)
D5 pump stand alone
XSPC horizontal reservoir
XSPC 360 radiator
Corsair AF120 Quiet Edition Fans
Cable mod cables
37 inch 1080p 144hz monitor (looking for a 1440p of same size and hz)

I do not edit videos or pictures. 
I play Bethesda games, Isometric rpg's, lil bit of gta, eso. Looking forward to games like cyberpunk, starfield, es6, watchdogs legion..
I use my rig as a youtube machine, for university, light CAD design, and gaming. 
I did absolutely everything possible on the platform I am on to future proof my rig and am wondering if users similar to myself see the need to upgrade.
I doubt i'll see much for degradation in gaming given the titles I play for a bit yet, and could always upgrade GPU's when I do without bottlenecking. That being said with the spectre and meltdown issues affecting performance as much as 30% in some cases.... It has me questioning things. Do a simple gpu upgrade when performance takes a hit in gaming or just start on a new platform altogether? Idk how much the new features will affect my daily use so I might be a bit naive in thinking it wont affect much, maybe some FPS. idk help me out here!

[Jurrunio]

Just do GPU upgrade for now. Even with security patches dropping CPU performance, you're still GPU bottlenecked.