Yup. We're in for a price bump before we even get to MTGMM.It's also a terrible idea to invest in RTR. Redemptions on MTGO are about to go up, and a complete set online is under half what it is in paper right now.
... That said, people speculating massive price crashes due to modern masters are being ridiculous. Despite collectors leaving the game in droves (which has been happening since the mid 2000s), casual players are flocking to paper Magic thanks to DOTP, and many of them are immediately entering the competitive scene. A limited print set cannot possibly meet demand for Modern era cards.