I will be (permanent)
seré
you will be (permanent)
serás
he/she/it will be (permanent)
será
we will be (permanent)
seremos
they will be (permanent)
serán
I will be (temporary)
estaré
you will be (temporary)
estarás
he/she/it will be (temporary)
estará
we will be (temporary)
estaremos
they will be (temporary)
estarán