I have so many lens update wishes:
Updates to existing lenses I would purchase or seriously consider purchasing (in order of personal priority):
Sony 12-24/4G II
Sony 100-400 GM II
Sony 24-240G II (can be 24-200)
Sony 28/2 G II
Sony 12-24/2.8 GM II
Sony 50/2.8 Macro II
New lenses I would love to see:
f2/ UWA zoom at a reasonable weight (preferably 12-24/2) - that is excellent all around, including for astro
Sony 500/5.6 - size of Sigma or smaller; sharp, fast, takes TCs. - better close focusing than the Sigma
28/1.4 GM - equal to or smaller in size than the 35/1.4 GM - but if I could only have one, I would take a very small 28/2 G
A 50-135/2.8 G to go along with the 16-25 and 24-50.
My overall ask:
A new, high quality UWA zoom (starting at 14 or wider) - can be f/2, f/2.8 or f/4;
A new, high quality superzoom - will trade aperture for size, but want it to be light, responsive and sharp 20-200; 24-200; 24-300; 28-300; 28-400
An update to the 100-400 GM
A 28 street lens
A lightweight and affordable tele prime for birding which does reasonable close focusing