SDCC Joe's/TF cover art....what happened to issues 1-4?

Wow can you believe it's already November, too crazy.
So I was putting on display my amazing looking art covers to all 3 SDCC GI Joe/Transformers and something just never made sense to me. Now if this answer had been disclosed long ago then clearly I missed it and for that my apologies all around.
So why did Hasbro or who ever was responsible decide to start this cross-over with issue cover 5 and not issue number 1? I personally would have preffered issue 1 regardless the reason. But if anyone knows the reason why they chose this route please let me know.
Is it possible they might still put out issue covers 1-4? It would be nice if they did.

So why did Hasbro or who ever was responsible decide to start this cross-over with issue cover 5 and not issue number 1? I personally would have preffered issue 1 regardless the reason. But if anyone knows the reason why they chose this route please let me know.
Is it possible they might still put out issue covers 1-4? It would be nice if they did.
