In His final words of assurance to devotees in 1950, Bhagavan Ramana said, "They say I am going, but where can I go? I am Here."
In the days leading to His leaving the body, Bhagavan did not make any attempt to appoint a successor, or to send seekers to another guru. Had there been a need to transfer seekers, Bhagavan, out of His deep compassion, would have certainly done so.
Never when He was in the body did He seek glory, and thus there is no reason to think He would do so at this moment (by saying that He is here). (For example, we know that He never claimed to having devotees)
Additionally, knowing His honesty, one cannot doubt the statement that He would always be here, to guide seekers.
Thus, his final spoken statement has to be taken literally. Bhagavan Sri Ramana Maharshi is here, guiding those who consider Him to be their sadguru.
He is the eternal sadguru.