Will 4.5 be the last patch for SB?

[KaplanHomahru]

Other things still on the table:
I've read speculation that Pyros might not be the final part of Eureka... we'll know more after 4.55 drops. In the previous expansion HW, the relics final step was equal in ilvl to the 8-man raid weapons. So if the Relic doesn't get to i405 in Pyros, it's possible that a final area will be implemented for the final step...
It's doubtful to me that we'll get a "victory lap" of content outside of Eureka for the 4.0 Relic, but I guess they could do a Victory Lap that requires you to go through all the Eureka areas and kill specific FATE targets with your 4.0 Relic equipped... /pray for those that have to defeat Cassie... If such a Victory Lap is a step in the 4.0 relic, then a 4th part of Eureka would be unlikely.
..

Per the official blog: "These can only be used in Pyros and the next iteration of Eureka, but you'll be able to use them as soon as you enter Pyros!"

https://na.finalfantasyxiv.com/pr/blog/

[Rowde]

Per the official blog: "These can only be used in Pyros and the next iteration of Eureka, but you'll be able to use them as soon as you enter Pyros!"

https://na.finalfantasyxiv.com/pr/blog/

Okay then... if there is a 4th installment of Eureka I can totally see 4.6 becoming a thing.

EDIT:
And ugh... I just got finished reading that full blog post and it looks like the Logos system is going to murder my inventory space...
The tradeoff is that I'll be able to extract some dank Mnemes!

[Amaeth]

Okay then... if there is a 4th installment of Eureka I can totally see 4.6 becoming a thing.

The last 2 Eureka's (including Pyros) have been released on X.X5 patches - i'd assume the last one would be on 4.55, as part of their spacing the content out they're trying this xpac, as previously the .55 patch has added little other than a bit of story to setup the next xpac and making everything getable with tomestones to gear everyone up. With that in mind, I wouldn't be suprised if they tweaked xp rates in Eureka or whatever when .55 comes out to get people trying it while waiting.

[Fawkes]

Okay then... if there is a 4th installment of Eureka I can totally see 4.6 becoming a thing.

EDIT:
And ugh... I just got finished reading that full blog post and it looks like the Logos system is going to murder my inventory space...
The tradeoff is that I'll be able to extract some dank Mnemes!

I think they'll avoid going to 4.6 as they have in the past for whatever reason. So we'll just get something like 4.5, 4.51, 4.55, 4.56a, 4.56b, 4.57.

And I really hope those mnemes act like currency and don't clog up our inventories...