OK. I understand an Arahant to be someone who has overcome the ten fetters. By this definition is an Arahant fully enlightened?
If we define full enlightenment as full liberation, then it is defined in several suttas, but MN-26 is a good one to look at. There we see all 8 stages of the religious experience (samadhi) described, then it goes into extinction (nirodha-samápatti), aka Cessation (saññá-vedayita-nirodha) aka Nibbana. In my experience there is still a lot of liberating to do after the 4th jhana; however, from 4th jhana mastery on, one is no longer a material being, and has mastered one's self.
Can you explain to me how this is accurate? What are the details of what you have experienced or come to know that has you make that statement?
I have spent 40 years meditating deeply through the 8 stages of the religious experience (samadhi), and being lucid 24-7. You do not have to believe me. All you need do is meditate with depth every day for the rest of your life, and you will find out for yourself.
And, can you tell me in detail what you currently intend to after this lifetime?
This does have a motivational purpose for me.
I really do not have an intention. My preference is the 8th samadhi; however, having no volition, means I go where I am called. I am constantly called in the immaterial domains to being who need me, so I am there.