There is an article about the soon to be opened Ritz-Carlton, Budapest - for which the general architect is Mertek Architectural Studio - in the Forbes Hungary magazine.
"The exact date is still not known, but it is certain that in 2016 in Budapest opens the newest member of The Ritz-Carlton chain. The news was announced in 2015 at the Arabian Travel Market organized in Dubai. The Ritz-Carlton Budapest will not be built from scratch instead the Le Méridien Budapest heritage protected building changes its brand and becomes The Ritz-Carlton. The hotel goes trough an extensive reconstruction is the first half of 2016, from this and from the future plans Marcus Loevenforst, the Ritz-Carlton Budapest Hotel General Manager has spoken to us."
The full interview can be found in the 2016. March edition of the Forbes Hungary magazine.