oops: 1080 sequence to UHD

[getho]

I just about about 5 hours making a convoluted sequence in 1080, now I've decided I want it in 4K so I can pan and scan on a 1080 timeline. 

its composed of clips of all different shapes and sizes with corner pin effects and lots of masks, with animation.  I have tried using transform to rescale the clips, but it doesn't rescale the masks on effects. 

Other than starting pretty much from scratch is there a way?

[excited_Genie16B8 · Accepted solution]

I think you're hosed.

[Richard M Knight]

If you want to pan and scan do you not want a smaller sequence?