My first suggestion would be to bring the 103 in orient red livery (like the 110) and have it sub in for the red/cream one. Second, please add Talbot wagen in InterRegio livery and/or also a blue/cream livery (for D-Zug services). The current setup (103 with Avmz & Bvmz as InterRegio and 110 with n-Wagen on international express trains like Riviera-Express) is not very realistic. 110 is okay, but the n-Wagen rolling stock was used only for local services (StadtExpress, RegionalBahn, RegionalExpress). Third, please bring the 111 from the Frankfurt-Fulda gameplay pack or from Mittenwaldbahn to Left Rhine. If TSG were to develop a new backdated loco, my suggestion would be to go for the 139 or 140, since there is a no period-correct freight loco yet. Also looking forward to the 420 btw.
