Centralized dynamic content in New Email Editor

In the Marketo New Email Editor, snippets aren’t supported and fragments can’t be segmented. Marketo Support says dynamic content must be handled via conditional content inside each email, which we want to avoid.

We need centrally managed, language‑/locale‑based variations (e.g., country‑specific social links and email footers).

Question:
Is there any supported or scalable way to manage segmented/dynamic content centrally in the New Email Editor without adding conditional content per email (e.g., template‑level, Velocity, or another pattern)?