It seems pretty clear we're done with evolving sensor sizes. Both 33x44 and 41x54 are here to stay.
That looks likely, and if not, I expect that it will be because one of those fades away and the other become the universal larger-than-36x24mm sensor format.
I would really suggest that P1, Hassy and Pentax sit around a table and define an official naming for these 2 sizes. . . .
I suggest the following and am willing to discuss the sharing of my IP.
- 33x44: MX
- 41x44: LX
I severely doubt that those companies would standardize on some total meaningless names inspired by Nikon's quirky format naming! (Also, we already have too many X's in too many places.)
More likely, and to me more reasonable, would be following the pattern long used for formats larger than 36x24mm: simply
using approximate sensor dimensions, dropping the unit name. Large format film uses inches (5x4, 7x5, 10x8), medium format film uses cm (645, 6x6, 6x7); for sensors I propose mm.
Then the three largest sensor formats could be called 36x24, 44x33, 54x41.
I note that in some parts of the world, 36x24mm film format has long been referred to in this way, as 36x24.