PLease, dear native English speakers, help me to understand the meaning of the expression "a year on" within the context "The reality is that, a year on, a true 4K standard is still very much a work in progress..." Thank you a lot!
A year + on
According to Merriam Webster, as an adverb, "on" also means a more advanced point in space or time; later on.
According to Longman, it means after a particular time such as Now, a year on, he is one of the most successful businessmen.
So the sentence implies "The reality is that after a year, a true 4K standard is still very much a work in progress".