Kobe played 38.5 mpg last year, and 38.6 minutes per game this year. Yes, Kobe was playing ridiculous minutes the pat 10 games, but to me it just looked like a freak injury that can happen to any player at any time.
If it is a complete achilles tear, that might be the last we see of Kobe as a Laker. Since he's hinted that next year would be his last, Lakers ownership will have to pay $85 million in luxtax next season. If they re-up Howard and amnesty Kobe, they could actually get under the luxtax line with a couple of moves. They could net $90 million by amnestying a player who probably isn't going to be ready to contribute till the spring at best. Yes the Lakers take in a ton of revenue, with the $150 million per year in local TV revenue and huge home gate, but saving $90 million on the bottom line is going to look attractive to any owners.
Re-up Howard, move Gasol for a solid wing and an expiring deal (Or just let Gasol expire), and go into LeBron Summer II with a franchise center and enough cap room to steal LeBron from Pat Riley. Kobe would be free to sign with the Lakers in the summer of 2014 with either the remaining cap space or as a vet min. That scenario is the best chance for Kobe to get another ring as a Laker. Of course, if he get amnestied, he could scare off any team claiming him, and ring chase in OKC or <shudder> Miami at the end of the 2014 season if he heals up quickly.