We are in the process of reimplementing Marketo. Is there anything I need to be aware of when copying over landing page templates and email templates from one instance of Marketo to a new instance of Marketo? I know this is manual, but wondering more about the code in the templates, is it all ok to bring over?
You're fine to copy & paste template code across from one to another; the only thing to be careful of is any my.token references that exist which will appear as blank in previews in your new instance until you create new equivalents (note that not all templates have my.tokens, yours may have none). There shouldn't be anything else in your templates that is instance specific per se.
Go forth & copy paste