[TYPO3-core] RFC: #11836: Remove final from classes

[Steffen Kamper]

Hi,

i expected negative voting, nethertheless it's worth to think about that 
architecture and about possibilities to do it a more flexible way.
Unit tests is a good example for the limitation, see the test with 
t3lib_extmgm where first test always fails.
Maybe we find a solution, as Masi already suggested singleton pattern.

vg Steffen