1. Have you tried calling and asking them?

2. You will be limited in your options, depending on the height and weight of your baby, as EVA will ask this when you call to reserve a bassinet. If they are too large, they will not even fit in one.

I don't know what you mean by, "will we be able to revert to normal seats". Do you mean non-bulkhead, where the arms will raise?

My best advice? Purchase the baby its own ticket if you can afford it. The flight will be much easier for everyone.