Traditional page poetry consists of arrangements of words in two-dimensional space. Technological advances (especially in the field of holograms perhaps) mean that there are - or will be - far more possibilities. No doubt someone somewhere is already exploring these (it would be interesting to know). But some of the possibilities would be as follows -

1. 3D. Words in 3-dimensional space. Possibly hologrammatic

2. 3D. Words in 2-dimensional space which change over time, with words/lines/arrangements replacing or supplementing each other in organised or random ways.

3. 4D. Words in 3-dimensional space (as 1. above) which change over time, with words/lines/arrangements replacing or supplementing each other in organised or random ways.

No doubt these arrangements could be/are being combined with other media - visual, auditory, whatever.

Two questions come to mind - perhaps others will think of more.

Firstly - At what point do we want to stop calling these new things poetry (and does it matter)?

Secondly - to what extent is the human mind capable of getting the same sort of satisfaction and connection out of these sort of things, as we currently do with the good ol' 2D stuff?

3D visual poetry has existed since at least the 60's - especially among the Brazilian concrete poets and others like John Furnival.

Visual poetry (or vispo) is I suppose somewhere between visual art and poetry. Terribly annoying if you like boundaries, but not so if you exploring the space between artforms.