We have several email templates with different layouts. Using snippets is the only scalable approach we've found within Marketo - especially since we have 23 country workspaces which share the same templates and require localized/translated footer content. This is also very convenient when we have to make a change that will affect many existing/future emails (like the "year"). We also use the system "{{system.unsubscribeLink}}" token for our common unsubscribe link in every one of our snippets.
Here's what every footer looks like in our template:
When creating an email based on the template, all a user has to do is simply click on the editable region and select "Replace with Snippet":
This brings up the "Replace with Snippet" selector where all one has to do is select a local, compliant footer snippet to use. We use the same approach for our social media toolbar:
Which results in the red text being replaced with the appropriate snippet:
This might be helpful for you as well, @Malik Zafar. Here's a footer with tokens included:
UPDATE: We now use a single, dynamic email footer snippet in all of our emails (instead of individual country snippets), that serves up the localized footer based on a country segmentation:
