I looked at this a little more. As was the case with Windows 8 Pro not showing the wizard, it has to do with the logic in MDT that determines if it is a "premuim SKU"
In ZTIUtility.vbs (in the Scripts folder of the deployment share) the is an IsHighEndSKUEx Function starting at line 3837.
Function IsHighEndSKUEx( sSKU )
' Windows Ultimate/Enterprise and Server SKU's allow for some
' higher-end features, like Bitlocker and Multiple Language Packs.
select case (ucase(trim(sSKU)))
case "ULTIMATE", "ULTIMATEE", "ULTIMATEN"
IsHighEndSKUEx = TRUE
case "ENTERPRISE", "ENTERPRISEE", "ENTERPRISEN"
IsHighEndSKUEx = TRUE
case "HYPERV"
IsHighEndSKUEx = TRUE
case "PRERELEASE"
IsHighEndSKUEx = TRUE
case else
If Instr(1, ucase(trim(sSKU)), "SERVER", vbTextCompare) > 0 then
IsHighEndSKUEx = TRUE
Else
IsHighEndSKUEx = FALSE
End if
End Select
From what I can tell, the SKU identifier for the evaluation of Win 8 Ent is "ENTERPRISE EVALUATION" So adding a case statement testing for that should allow you to have the wizard display for the evaluation media. Unfortunately I will be
away from my test environment for a few days and cannot co