There's never a dull week on Wall Street. Let's go over some of the news that will shape the week to come.

The new trading week kicks off with MannKind (NASDAQ:56400P706) reporting. MannKind's promise is compelling. If it's able to get its inhaled insulin on the market it will mean a largely prick-free treatment for that need regular insulin shots. However, before folks with diabetes begin a victory dance, MannKind needs to convince the FDA.

It's been four years since Afrezza was submitted, and we're closing in on an answer. Monday's report may naturally be about the financials, but investors will want to know if there's any visibility about where things stands with regulatory approval and if a bigger partner may be lending a hand.

Activision Blizzard (NASDAQ: ATVI) is hoping that Tuesday's release of Call of Duty: Ghosts lives up the hype. The leading video-game publisher knows that the annual updates of its combat simulator is a pretty big deal for diehard gamers. Then again, there was a time when players couldn't get enough of Guitar Hero and when World of Warcraft players were growing in number.

The video-game industry can be fickle, but Activision Blizzard is hoping for a strong showing. Then it will sit back and hope that the new Xbox One and PS4 hitting the market later this month will breathe new life into the gaming industry.

SolarCity (NASDAQ:SCTY.DL) has become a sexy name in solar. The company offers residential installation of solar panels, making it cost effective for consumers by financing the installments at rates that would be similar to what they would be paying in electricity.

SolarCity reports on Wednesday. The company has yet to turn a profit, and that's unlikely to happen this time around. It's the installer's long-term prospects and the Elon Musk connection that have combined to reward shareholders with some of the biggest gains of 2013. SolarCity's stock has more than quadrupled this year.

Things can always change, but this should be the day that Twitter begins trading. Reports indicate that the likely hot IPO should price on Wednesday night. The feeding frenzy will begin shortly after Thursday's market open. Twitter will trade on the New York Stock Exchange under the T-W-T-R ticker symbol.

As you can imagine, revenue's growing pretty quickly now that Twitter has begun to monetize its social hub. As you can also probably imagine, Twitter isn't close to turning a profit.

The market is typically quiet on Friday, but that won't stop Cablevision (UNKNOWN:CVC.DL) from reporting. It isn't easy being a cable television provider these days. Consumers are flinching from the rising rates as cable networks and broadcasters demand more money for carriage rights.

We already saw the country's largest cable provider post yet another quarterly decline in video customers. Cablevision isn't likely to fare any better on Friday morning.