Hoping for a 70-135 f/2L zoom myself. BTW: Loved your write up about the EF 24-105 f/4L II (I?) several months ago. Very nice photos of cars were with it. Your write up encouraged me a great deal to get the RF 24-105 f/4L when I ordered my R. You proved the EF version doesn't deserve all the bad written about it. Just goes to show that MTF charts, while they might be of some value, are not always the determiner of what is good or bad. Actual use and results in the hands of a master mean more. Your work is beautiful and makes me aspire to get better.This could be a very interesting lens for astro, so that would be a really cool prospect. I already know this lens isn't for my taste and needs, but renting one for an astro trip if it's low on coma and vignette would be awesome. The potential for the most incredible portrait zoom ever created is where I'm anxious...having two bodies with a 28-70 f/2 and a 70-135f/2 zoom would be simply game-changing for wedding photographers....I know that if that ends up being the combo, I will be buying both of them.