How do you become a digital creative/ a creative ready for the future of the ad businnes?

Hi everyone,

This is a topic on a subject i've already more or less mentionned here, but that I would like to launch again...:

how does one become a digital creative?
A better creative?
A creative that's ready for the future of the ad business?

I'm actually not even sure these are three different goals, with things merging together pretty fast.
Should a creative learn web programming, designing and computing codes? Or remain the idea guy all the way?

I've been an art-director for 4 years at a big network agency and I'm now a copywriter at another big network agency.
I'm just wondering how to keep evolving and never be out of 'trend'...

What are your thoughts?

Thanks !