In the rap "world" I believe Tupac is still remembered as a great artist and many fans still feel strongly about it. But just like anything else, there are always new artists emerging and they are becoming the best and greatest and many of the older artists are being pushed away as the younger generations weren't around to remember them.
Yes, Tupac will be remembered as a great artist. He will be remembered as one of the greatest in our generation. What he did for hip-hop was revolutionary. He will be looked at as not only a great hip hop artist but a great in general. He will be in the history books.
In 1985, the Enoch Pratt Free Library in Baltimore held a youth rap contest. The winner was 14-year-old Tupac Shakur. He will always be remembered as a great artist, most likely because of his untimely death. James Dean was a great actor, but was only really, truly recognised after his demise.
It is unfortunate to say, but Tupac Shakur will be more remembered for his death and the period surrounding it in which feuds in the rap industry were prevalent than for his work. He art gave him a means to express himself as well as pull himself up from his circumstances. However he ended up caught up in the dangerous side of living the kind of life that allowed him to create his art and become the famous individual that he was.