"eventual challenges" is a correct and usable phrase in written English.
You can use it to refer to the difficulties that you anticipate will arise in the future. For example: "We may face eventual challenges as our company grows, but I am confident we can overcome them."
The university faces the eventual challenge of adding six sports to equal the 15 it had before Katrina, so it can remain in Division I (which requires a minimum of 14).
Lewis's schedule, if he gets past the bigger Klitschko (6 feet 8 to Wladimir's 6-7), would then be a rematch with Mike Tyson and an eventual challenge from Wladimir Klitschko.
Suitable technology combinations have been proposed in order to reach the targeted emission levels and any eventual challenge seen with the combinations or technologies alone have been listed down with the ultimate target to find out the best options.
But, even with executive orders, rescinding such measures will be hard, requiring a Byzantine process of public hearings and eventual court challenges.
But that's not even what I took issue with when it came to Tide Pods, the eventual internet challenge in which people primarily teens pretended to eat the little, colorful balls of laundry detergent in video challenges.
Some experts speculated that the groups that received the recent I.R.S. letters — two founded in 2006 and one in 2007 — might have applied for tax exemption with an eventual court challenge in mind.
For one thing, a decision that effectively labeled the mandate a tax, though it would harm Obama politically in the short term, would actually shore up his health reform law against an eventual constitutional challenge, since the federal power to "lay and collect taxes" is virtually unlimited.
The DOJ has "secretly hired" former Walt Disney vice chairman Sanford Litvack, who once headed up antitrust division at the DOJ, to lead any eventual court challenge.
REUTERS Yahoo Could Challenge Eventual Facebook I.P.O.
