Thread:Leahhx/@comment-32002564-20180210231141/@comment-34653500-20180216144553

From the voice actor. It was confirmed in November (early November I think, about a week or two after the news and details about the characters for RotTMNT first officially came out.) During one of his many A&Q a fan tweeted him about certain questions regarding the details of the show. They tweeted him about the Raphael and Leonardo's role reversal (at the time some people still speculated that perhaps the press had made a mistake and accidentally switched Raphael and Leonardo's names in the official release) and asked him if that changes team dynamics and if that makes Leonardo the second youngest, since Raphael has been made second youngest in the IDW series. He affirmed.

It's such a small trivia, not vital or important to the show at all, but in my opinion, it's interesting enough to mention it, since Leonardo has always been the oldest of the team. It had been discussed to some small extent on Tumblr, Technodrome forum and Youtube vlogs. At the time people were mostly talking about the 'character assassination of Leonardo' (by stripping him of his personality and status.)

I thought this was a common knowledge that Donatello will be the second oldest this time. The fact that they specifically went as far as to mention the extra close bond between Michelangelo and Leonardo, with Leo taking him under his wing as his little buddy (not to mention his complete 180 turn of personality, for which, I still strongly believe there has to be a deeper reason and it wasn't done just for the sake of a change.), just added to it.

But like I said, it's just a fun, little trivia, not something specifically important.

Also apologies for such late reply. We had some issues with recent snow blizzard in our region. It's the first day of having network connection back after 4 days, and it's still wonky! It was horrendous. Hopefully I managed to answer you.