will EB in the nexted version have BI add-on ability

[mcantu]

EB is for RTW. Many who have RTW do not have BI, and requiring it would exclude those from playing (I assume using BI-only content would break the game for RTW). As you say, there are minimods that add this, so use them .

Not necessarily...RTRPE and XGM, for example, will install 2 shortcuts if you have BI installed. One to the RTW exe and one for the BI exe. You can then choose which to run. This way no one is excluded