3 years from last date you pass Written, so 3 years from 16 of February 2020. (doesn't matter how many Written you pass)
yes, changes to Active from Suspended on Feb 24th.
if your CCIE will become suspended on 10 March 2020, it will be extended; it will be valid till March 10 2021.
so I guess you do not have to rush with exam.
You can see the information in the Cisco pages:
CCIE Recertification 3 years
If your CCIE has 2 years of duration, from February 24th, it will update to 3 years (one year more)
On February 24, 2020, the new CCIE Enterprise Infrastructure v1.0 certification will replace the current CCIE Routing and Switching v5.0 certification.
If you have started working toward the current CCIE Routing and Switching certification, keep going. In the new program, you’ll receive credit for work you’ve completed in the current program.
*If you pass the current CCIE Routing and Switching Written v5.0 exam before February 24, you’ll be eligible to take the new CCIE Enterprise Infrastructure v1.0 lab exam after February 24.
*After February 24, the CCIE Routing and Switching Written v5.0 exam will be replaced with ENCOR 350-401. After you pass ENCOR 350-401, you will earn the Cisco Certified Specialist - Enterprise Core certification.
*If you complete the entire CCIE Routing and Switching certification before February 24, then on February 24, you’ll automatically receive the new CCIE Enterprise Infrastructure v1.0 certification, which can be maintained as per new recertification guidelines, and you will also receive the Cisco Certified Specialist - Enterprise Core certification.
Note: The same condition is for CCIE SP
All Cisco certs are valid for 3 years; Re CCIE, they removing 2 years and 1 year of suspension. no more suspension in CCIE cert.
also, they changing anniversary date. Starting Feb 24th , 3 years of validity starts on the date you pass exam to renew CCIE; not your date when you passed CCIE Lab. Confused? most of us were that's why they removing that.
If you have passed lab on January; you got CCIE on January. 2 years later you took Written to renew it in May, Your CCIE expiration date now is 3 years from January , not May. Yup...I know. pretty weird but all true.
Fortunately, they are removing this "weird" policy on Feb24th; I guess this is why your friend got 3.5 years.