Just ignore your ''friend'', it is obvious that he has got his information on the internet and is a bit ignorant enough to not know that you shouldn't believe everything you read without reputable sources to back it up.
In this case, no, there will not be anymore LBT television shows or film sequels anymore. That is, of course, may change if Universal issues a statement (ie reputable source-primary) in saying that another aspect will be released. However, it is highly doubtful that this will ever happen.
It is a shame that your friend either is so misinformed and believes everything that he reads from the internet, or, knowing how much you love the films (and television shows) that he could tell you this for the sole reason to get you so excited that you can, when finding out, become disappointed.