I grow in coco but when I see soil questions, I think of @ReikoX , he may be able to help you.
How old are these autos? What size is the container? What is your input water’s pH and PPM. What about runoff?
It may just be normal senescence.
Isnt the interveinal chlorosis a sign of Mg deficiency?
If @ReikoX speaks, do take that as GOSPEL, he’s the “OG SAGE” around here. His wisdom will greatly assist you in your Grow. SS/BW…mister 
7 gallon pot. same auto in both pics. about 10 weeks old.
Unfortunately when I started the hobby i did not invest in anything to monitor pH. The soil was branded that it simply used tap water start to finish, so thats about all I gave her.
10 weeks is a long time for an auto. Your likely just seeing the colours from the fade cannabis gets when nearing the end of life. Totally normal I say.
That’s the feeling I get too. Don’t sweat it, they should make it to harvest.
I was capable to run my last autos for 13-14 weeks from seed because I had to let seeds mature and if I would not chop It,also some weeks more.
What I noticed were lot of leaves started to due even tho the Nutrient and environmental were the same,basically She was Just aging.
I Guess It Is normal to autos?
I use Coco not soil.
I’ve had an auto go 16 weeks. It was supposedly an 8 week strain. It ended up huge though. I had to spread it sideways and it ended pushing the sides of my 4x4 out.
Plants are wierd. You can’t control them. All you can do is nurture them and when they get unruly snap and bend their limbs to keep them under control.
Hopefully @RenMorr is happy with the outcome.
Thank you all, I guess the general consensus is just to ride it out for the next 2ish weeks before chop. Thank you all for your guidance. This was my first post on this site, you guys rock.
First attempt and made it to the finish line oh yeah
Great job 
congratulations
Now the next one will be better and keep getting better after that
Ph is your friend so now you know
Paps