The 2020 campaign of the IFAO mission to Deir el-Medina took place from 5 January to 1 March under the direction of Cédric Larcher. The results have been published in the Bulletin archéologique des Écoles françaises à l'étranger - Deir el-Médina (2020) Mission d'étude et de restauration on https://journals.openedition.org/baefe/2985#tocto2n1
The following text is a translation into English from the original French:

Located south of TT 335 (Nakhtamon) and north of TT 213 (Penamon), the tomb of Qen has a relatively simple layout.
Its superstructure consists of a courtyard leading to a chapel with both sculpted and painted decoration, a rarity for tombs of the Deir el-Medina period. The chapel is modest in size: 3.27 m north-south by 2.03 m east-west. A pit in the north-western part of the chapel, 2.40 m deep, gives access to two undecorated burial chambers (Vault 1 and Vault 2). The first measures 3.70m by 3.20m and the second 3.80m by 2m. An external pit (no. 1054) to the south of the chapel gives access to the third vault (3.80m by 3.50m), which is connected to vault 2 and may be an older vault reused by Qen. After a fire, only a pillar and the southern jamb of the doorway still bear traces of inscriptions. The north wall shows traces of decoration.

The literature on the tomb mainly refers to the texts inscribed on the walls of the chapel. Only two photographs of the reliefs
of TT 4 have been published so far, which shows the importance of a comprehensive publication of this tomb (Černy 1927, pl. IV, figs. 1-2).

Since 2013, several stages of research have been carried out on this tomb:
- Production of facsimiles
- Creation of a topographical survey and a 3D model by Olivier Onézime (topographer)
- photographic coverage of the tomb by Ihab Mohamed Ibrahim (photographer, IFAO)
- Study of the objects kept in the Carter's storerooms.

In 2019, a team of restorers (Christina Verbeek and Stefan Lochner) carried out a laser test in the decorated burial chamber (Vault 3) to determine how to remove the thick layer of soot under which the decorations are partially visible. In addition to the soot, there is a layer of clay combined with a relatively thick layer of settled dirt, which would require a lengthy restoration process to remove. The study of TT 4 will therefore continue at this stage. In 2019, new research will be carried out to bring together all the monuments of TT 4, and a first stay at the Griffith Institute in Oxford will allow partial consultation of the archives of Jacques Jean Clère kept there.

During the two weeks spent in Deir el-Medina during the 2020 mission, the drawings made between 2014 and 2016 were verified and compared with the old photographic archives. It was also possible to encode and transliterate the hieroglyphic texts on the north, south and west walls of the chapel, which are the least legible. Due to the current state of health (pandemic), it has not yet been possible to complete the museographic mission to bring together all the objects from TT 4. This will be done as soon as possible in order to start writing the publication.