Here's what we are assuming for RC4 (yes, assuming!):
Darksend limit lifted
Darksend based on new crypto, extremely powerful anonymity (along the lines of ring sigs, but without the bloat)
MN payments enforced
"Spork" technology successfully implemented (enforcement = "on"); enforcement code perfected and streamlined
MN voting is deterministic
I2P integration completed or in the works
IP obfuscation
Based on the above features, we would be looking at a paradigm shift, and I think that the market would react accordingly. Now we don't know how many of those things will be in RC4, but we know from eltito that there's some damn amazing stuff in the works.
P.S. Peercoin as one of the most innovative cryptos ever? How's that? Yes, Proof of Stake was interesting, but what does PPC actually DO that nobody else did at the time? At it's heart it's still the same-old-same-old, albeit with a different staking/securing mechanism. Anonymity coins, on the other hand, are a *radical* departure from the normal paradigm.
Everything in red is more or less accurate, though I don't have a current status on i2p (I'll ask Evan).
Code audit is lined up with a well known party.
Once Evan has a first run of the RC4 code, we're going to release the details. At that point, we're confident that our competitors won't be able to catch up. Look for that to happen ~10-12 days from now.

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Darkcoin suffers from a bad methodology to achieve anonymity and it's put everything into this one basket.
Sorry to hear you lost faith in the project. Also, sorry you're going to be getting out at a horrible time (right before I announce I have EVERYTHING figured out to make Darkcoin mainstream?).
Over the past couple of days, I've made huge leaps in the Darksend technology. In fact, RC4 will be the final solution to Darkcoin's anonymity. The client will automatically look at all of your funds and it will be able to tell which funds are not anonymized, if it finds non-anonymous outputs it will run them through a darksend with other clients.
After that process, users can send without Darksend using the anonymous outputs for instant transactions without waiting for other nodes (with no upper limit on transaction sizes). The other thing you're missing is that there is a reason I forked Bitcoin. Adoption for Darkcoin will be MUCH faster and easier for vendors, because all of the APIs are the same.
Expect more news in a few days. I have lots of work to do, but soon we can start testing all of this new functionality.