Amina Inloes is originally from the US and has a PhD in Islamic Studies from the University of Exeter on Shi'a hadith. She is the program leader for the MA Islamic Studies program at the Islamic College in London and also the Managing Editor of the Journal of Shi'a Islamic Studies.
Ali Mahdi Greg Sowden studied world history at Wilfrid Laurier University in Waterloo, Ontario, Canada. Since then he has been a student at Al-Mustafa International University in Qom, in the Islamic Republic of Iran.
Sayyed Mohammad Al-Musawi,
Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to religious questions. In the past, he has also spent significant time in India guiding the community.
Zoheir Ali Esmail,
Shaykh Zoheir Ali Esmail has a Bsc in Accounting and Finance from the LSE in London, and an MA in Islamic Studies from Middlesex University. He studied Arabic at Damascus University and holds a PhD from the University of Exeter in the philosophical and mystical readings of Mulla Sadra in the context of the schools of Tehran and Qum.
Abbas Di Palma,
Shaykh Abbas Di Palma holds a BA and an MA degree in Islamic Studies, and certifications from the Language Institute of Damascus University. He has also studied traditional Islamic sciences in London, Damascus and Qom and taught for different institutions in Italy and UK.
Seyed Ali Shobayri,
Seyed Ali Shobayri is of mixed Iranian and Scottish descent who found the path of the Ahlul Bayt (a) by his own research. He holds a BA in Islamic Studies from Middlesex University through the Islamic College of London. He also studied at the Hawza Ilmiyya of England and continues Hawza and Islamic studies with private teachers.
Short answer: Yes and no.
"Al-Qa'im" means "the one who rises up" [for instance, against injustice]. It is primarily used for the Mahdi, but it can also be used for all the Imams.
The literal meaning of the word "al-Qa'im" does not specifically relate to one's name being unused; it comes from the word meaning "to rise" or "to stand".
However, titles for the Mahdi (including al-Mahdi and al-Qa'im) have been used instead of his personal name (which is the same as that of the Prophet (S)) because there are narrations saying that you should not refer to the Mahdi by name. So, in that sense, the Qa'im will arise when people are not referring to him by name; rather, they are referring to him as the Mahdi or the Qa'im.
[For instance, see https://www.al-islam.org/kamaaluddin-wa-tamaamun-nima-vol-2-shaykh-saduq... ]
It is also mentioned in a couple narrations that the Mahdi is called "al-Qa'im" because his occultation will last for a very long time. Therefore, when he reappears, people will have forgotten him so much that it will be as if he is rising up as a new creation. [Similar to how, on the qiyamah or Resurrection, people will rise up anew after being dead.]
[For instance, Bihar al-Anwar, vol. 51, p. 30 - سمي القائم عليه السلام قائما لأنه يقوم بعد موته ذكره. - "he is called the Qa'im because he will arise after his remembrance has perished".]
This is similar to narrations which say that the Mahdi will reappear in a time when faith is at an all-time low. So, in this sense, he may not be commonly spoken about before his reappearance.
So, you can say that both:
(a) The Mahdi is called "al-Qa'im" because he will lead an uprising [this is explained, for instance, by Imam al-Sadiq], and
(b) The Mahdi is called "al-Qa'im" beacuse he will arise at a time when his name has been forgotten, and therefore will be rising up anew.
The first view (that he is called al-Qa'im because he will lead an uprising) is the more commonly understood meaning, but both views are supported by narrations, and one can say that he is called al-Qai'm for both reasons.
Hope that helps!