No, it won't. Neither will the EASA one, if you don't have the required experience & pass an appropriate flight test that grants ATPL issue. In EASA-land, that could be an IPC with your employer to renew your instrument rating.
FAA-land doesn't have IR renewals - they're a permanent certificate - so requires a specific ATP flight test. Tolerances are tighter than EASA IR eg 1/4 scale tracking (GS & LOC). Generally, you may only do the ATP checkride when you meet the min. experience requirements.
There are two exams for an FAA ATP: one for a single engine ATP, and one for a multi-engine ATP. M/E ATP exam requires you complete a prep course (pretty much the equivalent of EASA's MCC). Other than that, there are no course requirements. Not even an instructor recommendation (for either exam, or for the checkride).
In either case it would be more accurate to consider your CPL (of whatever brand) to be a frozen CPL - because that's all it will ever be until, & unless, you meet all the other requirements for the issue of an ATP(L).
Last edited by Tinstaafl; 18th Jul 2016 at 00:31.