Given how much effort Johns put into bringing back the Golden Age looks during his JSA work, I highly doubt they're going to go away from the basic style we've seen. Besides, those images of Hourman II and Midnite II look awful compared to the Golden Age look.
Mid-Nite's in particular I think is a particularly great costume, and while I like it back than the original Hourman look, the Infinity Inc Hourman look is even worse than the Midnite look.
That said, while this season has been really good in general... I have to admit I wasn't as engaged this week. Partly it's because I think Beth is the weakest link of the show in acting, writing, and character. With Rick to a lesser extent. Last week's focus on Yolanda was much better in my opinion, she's such a standout.
It's funny, the whole thing about Beth being the non-action girl would be one thing if she was acting in a mission control type role or she was shown to have a big interest in medicine like her mom. Even Pieter Anton Cross ("my" Mid-Nite) was a lot more notable for his medical role than his fighting, although the blackout bombs would help (I forgot, have we seen blackout bombs in this show?), and of course McNider was.
That said, I'm loving Eclipso as the villain - the horror vibe has totally been fitting, and I'm loving that they actually committed, a la the Eclipso arc in the old JSA comics. I wonder if we'll see reference to Eclipso as the "former wrath of God"... I know it's very unlikely but it would be pretty amazing if they brought back Stephen Amell as the Spectre at least for a cameo or extended cameo.
Hoping we see Jade come back soon, and definitely want to really see Jakeem. Wouldn't mind seeing more of Cameon Makhent too, that's for sure.