Enhancement from EHP3 to EHP4

Hi All,

We are currently on Enhancment Package 3 and doing full implementation of Travel Management Module with Language Support.

To maintain the translations the changes are made to SAP Standard objects like -

OTR Packages - PTRM_WEB_UI , PTRM_WEB_POWL

Classes - CL_FITV_TEXT

Data Elements etc..

I want to know whether the changed translations will remain when the EHP4 will be applied.

Please provide valuable pointers.

Thanks and Regards,

Indu