Hmmm I like the new icons, yet I would rather condense/make them smaller and remove text from them replacing it with some tooltips like those found in the main ui .
The reason I would do that:
for one - new icons themselves are quite self explanatory and imho constant text explanation is not that necessary.
for two - that would keep interface nice, less cluttered and more modern looking cause the text due to it's length and unavoidable font variations "jumps" quite dramatically and that' not too good or modern looking I think.
for three - well that would free some now extinct space for future features such as, render history button, some render history A/B slider comparison button, render region button :), some render selected object only mode/render mask (hope that's planned) button and maybe some Lut loading, adjustment curves, etc buttons, plus maybe even dump vfb/resume buttons which would be welcome there too
And I would probably try to do those buttons flat and icons of some dimmer color (or somewhat shadowed) changing their color value to brighter/more colorful only then pressed or then mouse hovers over them for sleekness and stylishness reasons :)
Hope that helps somehow :)
